Texas defensive lineman T'Vondre Sweat, who weighs in at 366 pounds, ran the 40-yard dash at 5.66 seconds during the NFL Scouting Combine on Wednesday in Indianapolis.
Sweat called his shot at his combine press conference earlier, telling reporters that he was going to "shock" them.
Sweat, who did not run a second 40-yard dash, posted a 1.80 10-yard split during his run.
It was an impressive performance for the big man, who made headlines after he refrained from weighing in at the Senior Bowl.