Williams measured 6-foot-4 1/2 and 302 pounds, and he officially ran the 40 in 4.97 seconds. His unofficial 10-yard split was impressive, too, at 1.72 seconds.
NFL Media analyst Mike Mayock compared Williams to former All-Pro lineman Richard Seymour and called Williams "a big, strong dude." Fellow analyst Daniel Jeremiah touted Williams' quick hands and ability to fend off blocks. Jeremiah also said Williams can get pressure in the backfield against the run and the pass.
"He doesn't ever hardly come off the field," said Jeremiah, who had Williams as the top prospect in the draft before the combine.
Former NFL coach/current NFL Network analyst Steve Mariucci noted that Williams is "scheme diverse." Indeed, Williams looks to be a fit at end or tackle in the 4-3 and at end in the 3-4, which adds to his appeal -- and draftability.
NFL Network analyst Willie McGinest agreed with Mariucci. McGinest was on the field during drills and noted Williams' ability to be moved around was a big plus. He called Williams "an exceptional athlete."
Williams was a three-year starter at USC who left school after his junior season. He had 217 tackles, 20 sacks and 35.5 tackles for loss in his career.