Practices are underway at the 2018 Senior Bowl in Mobile, Alabama, where quarterbacks Josh Allen and Baker Mayfield are the main attraction on rosters full of NFL draft talent. Allen and the rest of the top senior NFL draft prospects were poked, prodded, measured and weighed Tuesday morning, but Mayfield's arrival was delayed, and he got to Mobile in time for the North team practice in the afternoon.
Now that both teams have practiced, our team of NFL draft experts -- Todd McShay, Matt Bowen and Steve Muench -- are breaking down how the best prospects fared, which under-the-radar prospects are rising, and more. Here's their recap of Day 1.
Check out the full rosters here. Coverage of Wednesday's and Thursday's practices begin on ESPNU/WatchESPN at 1:30 p.m. ET.
How each quarterback fared on Day 1
Let's start with the two headliners, then hit the other six signal-callers in Mobile:
Josh Allen, Wyoming
Team: North | Uniform number: 17 | Overall QB ranking: 3
Two areas Allen has been working on with quarterbacks coach Mike Sullivan are footwork on drops, especially getting more efficient and into a balanced position at the top of the drop, and consistency of his follow through. I thought Allen had a mixed day overall (he said after practice he had some "easy misses"), and that mirrored what he has shown on tape. When he has a one-dimensional throw -- where he has to throw to a spot -- he has elite life on the ball and is deadly accurate. But he struggles sometimes on touch throws, and there are times he doesn't need the fastball.
Still, he threw one laser on a 25-yard comeback that had people laughing because of how absurd a throw it was. He has elite arm talent. I'll be interested to see if he gets in a better rhythm over the next couple of days. -- McShay
Baker Mayfield, Oklahoma
Team: North | Uniform number: 6 | Overall QB ranking: 4
Mayfield always brings a circus, but I'm not sure that it's always his fault. Sometimes it is, and sometimes it's simply Baker and his personality. With that said, it wasn't a great start to the day for Mayfield in Mobile, after he had a family matter come up and missed the measurements, while the media saw Allen look like the prototype of what teams want in an NFL QB (6-5, 237 pounds, 10 1/8-inch hands). As for Mayfield, we still don't have an official high or hand span. That will be important.
As for on the practice field, Mayfield was paired with Allen several times during one-on-one and 7-on-7s, and I thought he was trying to put a little extra velocity on some throws to match Allen. His accuracy suffered as a result. Still, he settled in and was the best quarterback in the team session, throwing two first downs on back-to-back throws, including a dart to Colorado State's Michael Gallup in between two defenders. He had a slow start but strong finish. -- McShay
Luke Falk, Washington State
Team: North | Uniform number: 3 | Overall QB ranking: 7
Falk was the most consistent quarterback on either team Tuesday. Everyone to whom I've spoken says he's a smart kid and picks up things quickly. He seemed in control and confident throughout practice, compared to the other signal-callers. I thought he threw the most catchable ball, consistently getting the right trajectory and making it look easier than the other guys. It certainly seems as if he's going to benefit from the platform this week. -- McShay
Kyle Lauletta, Richmond
Team: South | Uniform number: 5 | Overall QB ranking: 8
A good day overall. Lauletta has adequate arm strength, but a little of a funky delivery, pushing the ball out. Of the South quarterbacks, I thought he had the most consistent ball placement. He understands his progressions and made fast reads, with good touch, and he showed good feel for the offense. One thing to watch was that sometimes it appeared he wanted to see the wide receiver get out of a break before throwing it. Lauletta is an intriguing Day 3 prospect. -- McShay
Kurt Benkert, Virginia
Team: South | Uniform number: 6 | Overall QB ranking: 9
I've heard Benkert has been a very impressive interview, and I was excited to see him in person Tuesday. Like all these QBs, there was some inconsistency but also some impressive moments. He made some good throws with timing, especially on outbreaking routes. He did drop a shotgun snap and appeared uncomfortable at times what he was doing pre-snap work. -- McShay
Mike White, Western Kentucky
Team: South | Uniform number: 14 | Overall QB ranking: 10
White had a tough first day, although it was clear he has a strong arm, and he did make some nice throws. His issue was consistency, as he underthrew a deep ball and was high on a deep out, among others. He also dropped a snap and had two center-QB exchange issues. He comes from a shotgun system at Western Kentucky, so it will be a process. -- McShay
Brandon Silvers, Troy
Team: South | Uniform number: 12 | Overall QB ranking: 11
Silvers has a live arm and got better as practice wore on. I thought he had a good day overall. There was one middle-in cut that he drove well and put in a perfect spot. One thing I saw, which also showed up on tape, is some anxiety in the pocket if he has to hold the ball longer than he wants. Creating and extending plays isn't instinctive to him yet. -- McShay
Tanner Lee, Nebraska
Team: North | Uniform number: 13 | Overall QB ranking: 13
With 37 interceptions to 46 touchdown passes in his college career at Tulane and Nebraska, turnovers have been an issue -- and they were again Tuesday. Poor decision-making under pressure during the team session led to a pick. He did flash some good deep balls with touch as well. This is a good opportunity for him the next couple of days. -- McShay
Draft risers from Day 1
These are the under-the-radar prospects who had a strong day of practice and whose college tape deserves closer inspection:
DaeSean Hamilton, WR, Penn State
Team: North | Uniform number: 5
Hamilton (6-1, 202 pounds) doesn't show great burst on tape, raising concerns about his ability to separate in the NFL. But he's an above-average route runner who did an excellent job using his hands and quick feet to get off the line, plus he showed the ability to win with his hands when corners tried to get physical with him. He looks natural catching the ball and has good length (32 5/8-inch arms) for his frame. He did have a few drops in one-on-ones, however. -- Muench
Isaiah Wynn, G, Georgia
Team: South | Uniform number: 77
After starting 15 games at left tackle in 2017, Wynn kicked inside to left guard at the Senior Bowl, and it's a position he has played before. That's where he projects best in the NFL considering his arms (33 1/8-inch) are on the shorter side. While he's not huge at 308 pounds, he looks quick and athletic getting into position and climbing up to the second level. He matched up well against former Alabama DT Da'Shawn Hand during team and one-on-ones. -- Muench
Michael Gallup, WR, Colorado State
Team: North | Uniform number: 84
Gallup looked like a natural pass-catcher early, and extended for a Mayfield pass down the seam during team drills even though he knew he'd get lit up. At 6-1, 198 pounds, Gallup flashed a solid release and good speed. He got behind Dubuque cornerback Michael Joseph on one pass, but the ball was underthrown. -- Muench
Chad Thomas, DE, Miami (Fla.)
Team: North | Uniform number: 90
The 6-5, 277-pound Thomas is a big and long defensive end who put on a show and displayed powerful hands during one-on-ones. He beat Pitt OT Brian O'Neill with a quick inside move and used a spin move to get Army OT Brett Toth before pushing Toth aside. Thomas also showcased his versatility by kicking inside and beating Virginia Tech OG Wyatt Teller with another quick inside move. It's an important start for a player whose tape doesn't always match his ability. -- Muench
Tre' Williams, ILB, Auburn
Team: South | Uniform number: 30
Williams didn't wow in any one area, but he checked all the boxes at the weigh-in by coming in at 6-2, 238 pounds with 32 1/2-inch arms. He caught everyone's attention when he stepped up, met San Diego State RB Rashaad Penny in the hole, jarred the ball loose and recovered the fumble. A shoulder injury sidelined Williams for three games and hindered him for most of the 2017 season, so his medial evaluation is critical. -- Muench
Best of the rest
Here are the prospects who flashed on Day 1, starting with a pass-rusher who was included in the first round of Mel Kiper's Mock Draft 1.0:
Marcus Davenport, DE, Texas San Antonio
Team: South | Uniform number: 93
Davenport flashed his power during individual drills and one-on-one pass rush. Yes, he is still raw, and his pad level needs to drop against the run to maximize his potential. I saw that during the inside run period. But as an edge rusher with that long, 6-6, 259-pound frame? We are talking about natural strength here. The ability is there to create a pop on contact, bench press offensive tackles and fold up the pocket. I can understand why pro scouts are focused on Davenport this week. This is a small-school prospect with a ridiculously high ceiling. -- Bowen
Mike Gesicki, TE, Penn State
Team: North | Uniform number: 88
With a smooth gait and body control at the top of the break, Gesicki looked like a polished route runner during practice. That allowed him to stem the safety within the route and gain leverage at the point of attack. Plus, with the ability to catch the ball outside of his frame, Gesicki (6-5, 242) has the skill set of a "move" tight end who can win on middle-of-the-field throws. Run the seam, dig route, shake a linebacker on an option route or separate on a crosser. And use that size to shield defenders from the ball. With his skill set, Gesicki can remove from the formation as a weapon in the slot or to the backside of the formations. And that gives NFL offenses the ability to create matchups. -- Bowen
James Washington, WR, Oklahoma State
Team: South | Uniform number: 28
After checking out tape on Washington, I wanted to see him work against press coverage and showcase enough lateral speed to shake defensive backs. Even with the highlight reel of deep ball shots he put together versus Big 12 defenses, beating press and separating are key to getting the ball in the pros. And I did see some positives from Washington (5-10, 210) during one-on-ones Tuesday. A quick move at the line and go -- then stack on top. That allowed Washington to separate on a couple of deep-ball opportunities, and he also displayed solid foot speed during change-of-direction work in individual drills. This is a big week for Washington in both one-on-one and team periods to showcase his grasp of the route tree and the technique necessary to slip tight coverage. -- Bowen
M.J. Stewart, CB North Carolina
Team: South | Uniform number: 26
Stewart had one of the best days in the secondary Tuesday because he challenged routes. That's the first thing I look for at the Senior Bowl workouts. Give me the defensive backs who compete. With the skill set and physicality to play both inside and outside the numbers, Stewart was aggressive in press coverage. That allowed him to get hands on wide receivers at the line and stick to the hip throughout the route. Plus, Stewart (5-11, 198) showed the ability to anticipate the break. That's why he was in a position to drive on the throw. Sink the hips and finish the play. That's good football. -- Bowen
Shaquem Griffin, LB, UCF
Team: South | Uniform number: 18
Griffin is undersized (6-0, 223), and everyone knows his backstory of having only one hand. But Griffin came in and smoked North Carolina A&T offensive tackle Brandon Parker in one-on-ones with straight speed off the edge. Griffin was disruptive in the run game, too, and he plays with tremendous effort. He has a chance as a late-round pick. -- McShay
Kalen Ballage, RB, Arizona State
Team: North | Uniform number: 27
Ballage flashed some legit lateral quickness for a big back with downhill ability between the tackles. I'm talking about that extra wiggle to skate past defenders or find an open lane during team drills. Along with the burst he displayed on an edge run top dip outside of the defensive contain, Ballage (6-2, 222) really surprised me during one-on-one pass routes against linebackers. He understands how to set up defenders on option routes, and his footwork was smooth. Chop the feet, give a little shake and then burst outside to separate to the ball. Ballage came to Mobile to compete. No doubt. -- Bowen