The deadline for underclassmen to declare has come and gone, and we'll get a look at some of the top talent at this week's Senior Bowl in Mobile, Alabama, which means it's a good time to reset the prospect picture.
Here are my updated top 32 prospects for the 2018 NFL draft right now, plus my top 10 prospects at each position.
Note: Underclassmen marked with asterisks.

1. Saquon Barkley, RB, Penn State*
Grade: 95 | Previous rank: 2
Barkley was the best running back in the nation this season, racking up more than 1,200 yards on 5.9 yards per carry and 18 TDs despite regularly facing eight and nine men in the box. Barkley has a distinctive combination of size, agility and power. There just aren't many 230-plus pound backs with his feet and acceleration. Barkley is also a three-down back with solid hands as a receiver and above-average blocking skills in pass protection. Making it an even easier evaluation is the fact that Barkley is a driven competitor with very good leadership skills and no off-the-field issues. This guy is clean and complete as they come.

2. Sam Darnold, QB, USC*
Grade: 94 | Previous rank: 3
There's no doubt that Darnold made some questionable decisions throwing the football this season (13 INTs) and picked up some bad habits behind a shaky offensive line (specifically erratic pocket poise and loose handling of the football). But when his base and feet are right, Darnold can be a very accurate passer. His ability to extend and improvise is an important trait, and there's a lot to like about his intangibles and leadership skills. Josh Rosen is more polished as a pocket passer, but I think Darnold's ceiling is higher.

3. Josh Rosen, QB, UCLA*
Grade: 93 | Previous rank: 1
This will remain a close race between Darnold and Rosen for the top QB spot. I think it was obvious to anyone who watched the USC-UCLA game that Rosen is far more NFL ready than Darnold as a pocket passer right now. Rosen is a naturally gifted passer with the touch, anticipation and ball placement that you see in most of the NFL greats. But Rosen has some red flags of his own. His inability to extend some plays with his feet is concerning, and it has led to a lot of poor decisions under fire (26 INTs in 30 starts). Rosen also needs to sell teams during the pre-draft process on his coachability, leadership skills and passion for the game.

4. Bradley Chubb, DE, NC State
Grade: 93 | Previous rank: 5
A two-year starter and 2016 team captain, Chubb ended the '16 season ranked fourth in the nation with 22 tackles for loss. He isn't an elite pass-rusher, but he has a good first step, bends well for his size and has a nonstop motor. Chubb was very productive this season, with a remarkable 25.0 TFL and 10.0 sacks. He's a great all-around player.

5. Minkah Fitzpatrick, S, Alabama*
Grade: 93 | Previous rank: 4
Fitzpatrick played as a true freshman and started in 42 of his 44 collegiate games. He has a unique skill set and has been all over the field this season. He is a true shutdown corner but also can be used as a safety. A solid all-around player, he could be in the mix for the No. 1 pick depending on the team.

6. Denzel Ward, CB, Ohio State
Grade: 92 | Previous rank: 10
Ward wasn't high enough on my radar early in the year, but I went back and watched some tape from this season -- and boy was I impressed. Spending last season behind Marshon Lattimore, Malik Hooker and Gareon Conley (all 2017 first-round picks), he didn't get much playing time, but he has elite fluidity, quickness and recovery speed. He has closed the gap with Fitzpatrick and had 15 passes broken up (Fitzpatrick had eight).

7. Tremaine Edmunds, OLB, Virginia Tech*
Grade: 92 | Previous rank: 31
I've been impressed with Edmunds this season. He is a versatile linebacker with a great frame and speed for his size (6-foot-5, 236 pounds). He has been flying around the field, with 102 tackles, 5.5 sacks and three forced fumbles. Edmunds had 18.5 tackles for loss and 4.5 sacks in 2016. He's rising on boards right now.

8. Roquan Smith, OLB, Georgia*
Grade: 91 | Previous rank: 19
An athletic sideline-to-sideline weakside linebacker, Smith played well on the biggest stage in the College Football Playoff. Even with all of the speed on Georgia's defense, he stands out. He had 6.5 sacks and 14.0 TFL on the season, but his potential far outweighs those numbers.

9. Quenton Nelson, G, Notre Dame*
Grade: 91 | Previous rank: 17
Nelson is a road-grader with the size (listed at 6-foot-5, 325 pounds), strength, polish and toughness to start immediately in the NFL. He seems like one of the safer prospects at this point.

10. Vita Vea, DT, Washington*
Grade: 91 | Previous rank: 28
Listed at 6-4, 346, the former high school running back was a space-eater in the middle of Washington's defense. But with 3.5 sacks and 5.5 TFL, he has the ability to split double-teams and wreak havoc in the backfield. He has the potential to put up some silly numbers at the combine.

11. Derwin James, S, Florida State*
Grade: 92 | Previous rank: 6
James is one of the most versatile players we've ever evaluated. A third-year sophomore, James tore the lateral meniscus in his left knee in the second game of 2016 and received a medical redshirt. He played well despite a disappointing overall season for Florida State. James is one of the most talented prospects in this draft and should have a good combine showing.

12. Rashaan Evans, LB, Alabama
Grade: 91 | Previous rank: NR
Evans came on strong this season, tying Ronnie Harrison with a team-high 74 tackles. He was sensational in the College Football Playoff games, flashing his pass-rushing prowess and versatility as a run defender and coverage linebacker. With the ability to line up inside and outside, Evans has raised his stock considerably and looks to be a first-round pick. Medical results will be key to his draft stock.

13. Orlando Brown, OT, Oklahoma*
Grade: 91 | Previous rank: 24
The son of the late Orlando "Zeus" Brown, the younger Brown is a better fit at right tackle in the pros, though he has played exclusively at left tackle in a run-heavy Oklahoma scheme. He played well down the stretch.

14. Josh Allen, QB, Wyoming*
Grade: 90 | Previous rank: 15
Outside of scouting circles, Allen was a relative unknown coming into the season. Most of his appearances in the national spotlight (at Iowa, vs. Oregon, at Boise State) didn't go well, but some of that was him and some of it was a poor supporting cast. He is one of the most physically gifted QBs to come out of college in the past five years. He has an elite arm and frame (listed at 6-5, 233) and can make every throw when his feet are right, as he showed in the bowl game against Central Michigan. If he improves his footwork and makes fewer low-percentage throws into heavy coverage, the sky is the limit for Allen.

15. Mike McGlinchey, OT, Notre Dame
Grade: 90 | Previous rank: 14
In 2016, McGlinchey moved from right tackle to the left side vacated by Ravens first-round pick Ronnie Stanley. An above-average zone blocker, McGlinchey plays angles well and gives good effort. He does everything well, but isn't outstanding in any one area. A high-floor prospect.

16. Calvin Ridley, WR, Alabama
Grade: 90 | Previous rank: 13
Ridley didn't get a chance to showcase his full potential in Alabama's run-heavy offense, but he averaged 15.3 yards per catch this season and scored a TD in both playoff games. A player with outstanding foot quickness and a nightmare in the open field, Ridley has good acceleration. He's the clear No. 1 receiver in this class, though I'm not sure if he's a true No. 1 wideout in the NFL.

17. Joshua Jackson, CB, Iowa*
Grade: 90 | Previous rank: 21
Jackson made my Top 32 list after his three-INT game against Ohio State, and he has stayed here since. He's long (6-1) with natural cover skills, and attacks the ball like a wide receiver. He's still developing consistency with his footwork and eyes, but he's one of the top CBs coming out. He led the nation with eight INTs this season.

18. Da'Ron Payne, DT, Alabama*
Grade: 89 | Previous rank: NR
Payne had a good season overall with 53 total tackles and a sack, but I love that he played some of his best football in the playoff. An excellent run-stuffer, he's tough to move off the ball and has the upper-body strength to control blockers and get off blocks. His lacking sack production is concerning and could keep him out of the top 20, but when you study the tape, you see his disruption in that part of the game. The national championship game was a great example; zero sacks on the stat line, but he frequently pushed QB Jake Fromm off the spot and also pressured Fromm into two INTs.

19. Baker Mayfield, QB, Oklahoma
Grade: 89 | Previous rank: 27
My ninth-ranked QB entering the season, the 2017 Heisman winner has done a ton to improve his draft stock. As good as Mayfield's numbers were this season (4,627 yards, 43 TDs, 6 INTs), he's even more impressive to me as a team leader. Teammates rally around him. So what will be the pre-draft concerns? First off, his measurables will be scrutinized. Is he 6 feet tall? Does he have 9-inch hands? Does he have the size to hold up physically or will the NFL look more like the second half of the loss to Georgia, where his efficiency dipped after taking a beating? Secondly, I think it will be critically important to study his "pressure drops" on tape. Few QBs in the country were afforded more clean pockets than Mayfield at OU. So teams will want to really focus on his effectiveness when under pressure and look for any concerning tendencies (like his tendency to bail to his right).

20. Harold Landry, OLB, Boston College
Grade: 89 | Previous rank: 8
Landry led the nation with 16.5 sacks and seven forced fumbles in 2016. I still have concerns about his size (listed at 6-3, 250), but he should develop into an every-down player in the NFL and teams will value his versatility. He had a bit of a disappointing 2017 season, with only 8.5 TFL and 5.0 sacks, but some of that was due to missing four games because of a lingering ankle injury.

21. Marcus Davenport, DE, UTSA
Grade: 88 | Previous rank: NR
A fast riser right now, Davenport put up 8.5 sacks and 17.0 TFL. Scouts are excited to see him in person this week in Mobile. He's one of the best pure pass-rushers in the class.

22. Mike Hughes, CB, UCF*
Grade: 88 | Previous rank: NR
A shutdown man-to-man cover corner who will also support the run. He took some high-level WRs out of their games in 2017, holding SMU's Courtland Sutton (possible first-round pick) to 46 receiving yards and Memphis' Anthony Miller (Day 2 prospect) to only three catches in the regular-season matchup (most of Miller's production in the AAC championship game came on the opposite side of the field from Hughes). Hughes is also dangerous in the return game -- averaged 16.6 yards per punt return with a TD and 31.8 yards per kickoff return with two TDs in 2017.

23. Christian Kirk, WR, Texas A&M*
Grade: 88 | Previous rank: 16
Kirk hasn't been running an NFL route tree at Texas A&M, but he's a speedy slot receiver and dangerous punt returner. He had some focus drops during a frustrating 2017 season, but Kirk has good football character and he's a dynamic threat with the ball in his hands.

24. Mo Hurst, DT, Michigan
Grade: 88 | Previous rank: 29
Hurst is a quick and powerful one-gap penetrator who is highly disruptive against the run. He has a powerful upper body and disengages quickly. I think he fits best as a 3-technique in a 4-3 system, where he can get in the backfield and get after the quarterback.

25. Connor Williams, OT, Texas*
Grade: 89 | Previous rank: 11
A true junior who started all 23 games in which he appeared coming into this season, Williams is an athletic scheme-versatile blocker with a high ceiling. Unfortunately, he suffered a sprained MCL and PCL in his left knee, along with a meniscus tear, against USC and missed most of the season. His medical results will play a big role in where he's selected.

26. Brian O'Neill, OT, Pittsburgh*
Grade: 87 | Previous rank: NR
O'Neill actually was a tight end when he came to Pitt in 2014. He's a great athlete who has played both right and left tackle. At 6-6, 290 pounds, he's very agile and light on his feet.

27. Sony Michel, RB, Georgia
Grade: 87 | Previous rank: NR
Michel wasn't the featured back at Georgia, but I think he'll be the first Bulldogs RB off the board. Michel has an intriguing combination of size and burst, and he's a better pass-catcher than his production would indicate. His acceleration and body control were on display versus Alabama.

29. Rasheem Green, DT, USC*
Grade: 87 | Previous rank: NR
The light really came on for Green in 2017, as he started all 15 games and led the team with 10 sacks. At 6-5, 280, and offering plenty of scheme versatility, he should only continue to improve with more game experience and NFL coaching.

30. Derrius Guice, RB, LSU*
Grade: 86 | Previous rank: 12
Guice isn't Leonard Fournette, but he has an impressive combination of size, power and quickness. He also shows the ability to stick his foot in the ground and accelerate upfield. He played very well late in the season after a slow start, racking up more than 1,200 yards and 11 TDs. If he runs as well as I expect him to, Guice will be the second straight LSU running back selected in Round 1.

31. Billy Price, C, Ohio State
Grade: 86 | Previous rank: NR
An experienced three-year starter at guard heading into his senior year, Price is a plug-and-play NFL starter who should be steady in the league.

32. Isaiah Oliver, CB, Colorado*
Grade: 86 | Previous rank: NR
A two-year starter and three-year player, Oliver has 20 pass breakups and three INTs the past two seasons. He has good length and can develop into a press-man corner in the NFL. I'm interested to see how he runs and tests at the combine. Hugely important at the CB position. Also has some experience in the return game.

Top 10 prospects at each position
QBs
1. *Sam Darnold, USC
2. *Josh Rosen, UCLA
3. *Josh Allen, Wyoming
4. Baker Mayfield, Oklahoma
5. Mason Rudolph, Oklahoma State
6. *Lamar Jackson, Louisville
7. Luke Falk, Washington State
8. Kyle Lauletta, Richmond
9. Kurt Benkert, Virginia
10. Mike White, Western Kentucky
There is a definite drop-off after the top four QBs here. Rosen is the most NFL-ready QB right now, but I believe Darnold has the higher long-term ceiling.
RBs
1. *Saquon Barkley, Penn State
2. Sony Michel, Georgia
3. *Derrius Guice, LSU
4. *Ronald Jones II, USC
5. Rashaad Penny, San Diego State
6. Nick Chubb, Georgia
7. *Kerryon Johnson, Auburn
8. Akrum Wadley, Iowa
9. *Josh Adams, Notre Dame
10. Royce Freeman, Oregon
Michel has impressed me lately and was terrific in the College Football Playoff, especially showing his speed against Alabama.
WRs
1. *Calvin Ridley, Alabama
2. *Christian Kirk, Texas A&M
3. *Courtland Sutton, SMU
4. James Washington, Oklahoma State
5. Anthony Miller, Memphis
6. D.J. Chark, LSU
7. *Auden Tate, Florida State
8. *D.J. Moore, Maryland
9. Michael Gallup, Colorado State
10. *Jordan Lasley, UCLA
Ridley is the cream of the 2018 draft wide receiver class crop, but not an Odell Beckham Jr. or Amari Cooper-type of No. 1 NFL wideout.
TEs
1. Dallas Goedert, South Dakota State
2. *Mark Andrews, Oklahoma
3. *Hayden Hurst, South Carolina
4. Mike Gesicki, Penn State
5. *Ryan Izzo, Florida State
6. Ian Thomas, Indiana
7. Troy Fumagalli, Wisconsin
8. Jordan Akins, UCF
9. Chris Herndon, Miami (Fla.)
10. Durham Smythe, Notre Dame
Goedert had another big season for South Dakota State, with 72 catches for 1,111 yards and 7 TDs, after 92 catches, 1,293 yards and 11 TDs in 2016.
C/G
1. *Quenton Nelson, G, Notre Dame
2. Billy Price, C, Ohio State
3. *James Daniels, C, Iowa
4. Braden Smith, G, Auburn
5. Frank Ragnow, C, Arkansas
6. *Will Clapp, G, LSU
7. Mason Cole, C, Michigan
8. Scott Quessenberry, G, UCLA
9. Skyler Phillips, G, Idaho State
10. Will Hernandez, G, UTEP
Nelson is a plug-and-play starter and exactly what you're looking for in a starting NFL guard.
OT
1. *Orlando Brown, Oklahoma
2. Mike McGlinchey, Notre Dame
3. *Connor Williams, Texas
4. *Brian O'Neill, Pitt
5. *Kolton Miller, UCLA
6. Martinas Rankin, Mississippi State
7. Chukwuma Okorafor, Western Michigan
8. Tyrell Crosby, Oregon
9. Desmond Harrison, West Georgia
10. Jamarco Jones, Ohio State
There is a lot of potential in this offensive tackle class, but not a surefire top-10 pick. At least at the moment.
ILBs
1. Rashaan Evans, Alabama
2. *Leighton Vander Esch, Boise State
3. Josey Jewell, Iowa
4. Micah Kiser, Virginia
5. Nick DeLuca, North Dakota State
6. Mike McCray, Michigan
7. Shaun Dion Hamilton, Alabama
8. Jack Cichy, Wisconsin
9. Fred Warner, BYU
10. Chris Worley, Ohio State
Evans made great strides this season after moving into the starting role late last year and is a likely top-40 pick.
OLBs
1. *Tremaine Edmunds, Virginia Tech
2. *Roquan Smith, Georgia
3. Harold Landry, Boston College
4. Uchenna Nwosu, USC
5. Obo Okoronkwo, Oklahoma
6. Lorenzo Carter, Georgia
7. *Malik Jefferson, Texas
8. Jeff Holland, Auburn
9. *Jerome Baker, Ohio State
10. Skai Moore, South Carolina
I've been hearing more buzz surrounding Edmunds, who has terrific athleticism and should test off the charts at the combine.
CBs
1. *Denzel Ward, Ohio State
2. *Josh Jackson, Iowa
3. *Mike Hughes, UCF
4. *Isaiah Oliver, Colorado
5. *Carlton Davis, Auburn
6. *M.J. Stewart, North Carolina
7. Anthony Averett, Alabama
8. *Tarvarus McFadden, Florida State
9. Chris Campbell, Penn State
10. *Jaire Alexander, Louisville
Jackson led the nation with 8 INTs, including three against Ohio State.
Safeties
1. *Minkah Fitzpatrick, Alabama
2. *Derwin James, Florida State
3. *Ronnie Harrison, Alabama
4. Armani Watts, Texas A&M
5. *Justin Reid, Stanford
6. Kyzir White, West Virginia
7. Quin Blanding, Virginia
8. Jeremy Reaves, South Alabama
9. *DeShon Elliott, Texas
10. Marcus Allen, Penn State
Fitzpatrick is a tremendous player who can do a little bit of everything, and could very well go in the top five.
DEs
1. Bradley Chubb, NC State
2. Marcus Davenport, UTSA
3. *Arden Key, LSU
4. *Rasheem Green, USC
5. *Sam Hubbard, Ohio State
6. Jalyn Holmes, Ohio State
7. Tyquan Lewis, Ohio State
8. Kentavius Street, NC State
9. Duke Ejiofor, Wake Forest
10. Dorance Armstrong Jr., Kansas
Davenport has been a hot name and I'll be interested to see him in person in Mobile for the Senior Bowl.
DTs
1. *Vita Vea, Washington
2. *Da'Ron Payne, Alabama
3. Mo Hurst, Michigan
4. *Taven Bryan, Florida
5. *Harrison Phillips, Stanford
6. Derrick Nnadi, Florida State
7. *RJ McIntosh, Miami (Fla.)
8. Deadrin Senat, South Florida
9. *Tim Settle, Virginia Tech
10. *Hercules Mata'afa, Washington State
Vea, the former HS running back, has the potential to put up some silly numbers at the combine.