Former defensive tackle best known for his seven-year stint with the Minnesota Vikings, where he was a two-time Pro Bowler. He was named NFL Defensive Player of the Year in 1989.
He attended Washington University, where he was voted First-Team All-Pac-10 in his senior season.
Following his playing career, he became a coach for teams like the Denver Broncos and Oakland Raiders.
He has a son named Johnny.
He was teammates with running back Herschel Walker during his days with the Minnesota Vikings.