After redshirting his first year at IUP, Villarrial began his college career as a reserve nose guard until moving to offensive right tackle midway through his freshman season.
As a member of the Chicago Bears from to 1996 to 2003, Villarrial played six seasons under head coach Dick Jauron and was a two-year All-Pro player in addition to being named to the All-Joe Team.
After poor performances in the 2002 and 2003 seasons and a history of lewd and bullying behavior in the locker room, the Chicago Bears decided not to renew Villarrial’s contract and he was signed by the Buffalo Bills with head coach Mike Mularkey.
Following his professional career, Villarrial returned to Ebensburg, PA, where he served two seasons as the offensive coordinator for the Central Cambria High School football team.
He led the team to two district title games, and personally helped 13 players continue their playing careers at the collegiate level, while developing and implementing a successful strength and conditioning program.