INDIANAPOLIS (WACH) -- Jadeveon Clowney made things tougher for Johnny Manziel and the other potential No. 1 picks Monday.
The former South Carolina star ran the fastest 40-yard dash time of the defensive lineman. NFL.com reported the unofficial time at 4.47 seconds. NFL Network said it was 4.53. Either way, it was still tops at his position.
His time more resembles a wide receiver's speed in that drill. The five-year average of wide receivers at the combine is 4.54 seconds, but the athletes' average weight at that position is a little more than 200 pounds, while Clowney weighed in at 266.
Clowney did 21 reps at 225 pounds in the weightlifting workout, putting him in the second half of the defensive ends.
Michael Sam, who is trying to become the first openly gay player in the NFL, posted an unofficial 40-yard dash time of 4.79 seconds and did 17 reps, according to NFL.com. NFL Network reported the time was 4.91.
(The Associated Press contributed to this report.)