Name: Jonah Williams
Position: Offensive line
Ht/Wt: 6-4, 302
40-yard dash: 5.12 seconds
Bench: 23 reps
Vertical: 28.0 inches
Broad: 100.0 inches
20-yard shuttle: 4.79
How he fits: Williams started for Alabama at right tackle as a true freshman. That doesn't happen a whole lot for that program. He moved to left tackle for the 2017 and 2018 seasons, and was an Outland Trophy finalist. He won the SEC's Jacobs Blocking Trophy as the best offensive lineman in the conference this past season.
Williams has shorter arms (33 5/8) than some would like at the tackle spot, which could potentially push him inside to guard in the NFL. If he's willing to do so, it will make him a versatile player with the ability to play both inside and outside.
The Lions currently have an opening at right guard after releasing veteran T.J. Lang this offseason. If Williams stays at tackle, the Lions are still undecided on the fifth-year option on left tackle Taylor Decker's contract for next season. They have to make the decision to pick it up or not in early May.
Key observations: Williams started every game of his Alabama career (44). He had 48 knockdown blocks this past season, graded out at 90 percent or higher in 14 of 15 games, missed only three assignments in 920 snaps at left tackle, and did not allowed a sack all season, according to the Alabama football website.
View photos of NFL prospect Jonah Williams.
What they had to say about him: "Williams lined up at left tackle for the Tide, but I'm projecting him to guard at the next level. He has outstanding feet in the passing game. He is quick, and he smoothly redirects versus counter moves. He plays with knee bend and keeps his hands in tight. His lack of length does show up on tape, and that is why I'd prefer to see him play inside. He is dominant in the run game. He runs his feet on contact and generates movement at the point of attack. He's also effective working up to the second level. He takes proper angles and plays on his feet. I love his awareness and toughness. Overall, Williams is an excellent prospect and has a chance to be a Pro Bowl guard early in his career." – Daniel Jeremiah, NFL.com
How he stacks up: Williams is the 19th overall prospect on Jeremiah's list of the top 50 players available in this draft. He's the second offensive lineman on Jeremiah's list behind Florida's Jawaan Taylor (13).
Williams checks in at No. 4 on Dane Brugler of The Athletic's list of the top 100 prospects.
"Williams will win over an NFL coaching staff because he is a tactician with intense work habits and competitive desire," Brugler wrote of Williams.
He's No. 20 on Mel Kiper Jr.'s latest Big Board of the top 25 prospects.
What he had to say: "I know what I can do on a field," Williams said at the Combine. "I'm confident in my preparation. I think I'm a talented individual with good athleticism. I know I can outwork and out-prepare anyone. That's the way I was successful in college. That's the way I'll be successful in the NFL."