As a senior, he registered 92 tackles (second on the team), 4.5 sacks, 11 tackles for loss, 3 passes defensed, one forced fumble and one fumble recovery. He gained fame in a nationally televised game by knocking out Texas Christian University wide receiver Kyle McPherson with a ferocious hit on a pass over the middle, breaking McPherson's jaw in three places. ESPN named it the "Hit of the Year". He was selected second-team All-American, All-SWC, and a SWC Defensive Player of the Year. In the 1992 Cotton Bowl Classic, the Aggies lost 10-2 against Florida State University, with Coryatt producing the only points after making a sack for a safety, while also having 15 tackles (10 solo), 3 tackles for loss and one safety.