Pro Football Focus will be providing analysis for every major signing and trade during the 2015 free-agency period, accounting primarily for the quality of player and his fit with his new team and focusing less on the financial terms of the deal.
Here is the grade from the Miami Dolphins' expected signing of Ndamukong Suh. Barring a breakdown in formal contract negotiations, Suh is expected to sign later this week.
Link to grade articles on every major deal
Miami Dolphins: A
The Dolphins have landed the biggest free-agent prize of the 2015 offseason in Suh (reportedly for $116 million, with $60 million guaranteed), an aggressive acquisition that moves them closer to the perennial AFC East champion New England Patriots. Setting the money aside, the Dolphins add one of the league's most disruptive interior pass-rushers, as Suh has ranked in the top 10 in PFF pass rush grade each of the past four seasons, including a plus-14.8 mark last season that ranked seventh among defensive tackles.
Perhaps most impressive about Suh's game has been his improvement against the run, transforming himself from below average as a rookie (minus-9.3 grade) to second-best in 2014 (plus-18.1). His career-high run stop percentage of 9.7 ranked sixth among defensive tackles, as Suh continues to develop as a playmaker in all aspects of the game.
Suh's aggressive play is well known around the league -- his 10 penalties tied for the league lead among defensive tackles in 2014 -- but it's a risk worth taking given the rest of his skill set. While the defensive line was strong in Miami last season, it struggled down the stretch, and Suh provides a rare, every-down presence with a unique ability to take over the game like few defensive tackles.