"Johnson saw action in 11 games last year, mostly on special teams, and started two games at outside linebacker. He will be shifted to defensive end in 1976. A strong, aggressive player and a vicious tackler, Mark was the leader in tackles on kickoff coverage teams.
Mark earned All-Big Eight honorable mention honors in 1974 after recovering from spring knee surgery. He led Missouri in total tackles in 1973 and 1974, totaling 198 tackles in two years, and had 16 quarterback sacks plus a fumble recovery in 1974. Mark played in the 1975 Hula Bowl.
He's a physical education major who enjoys horseback riding, basketball and movies."
-Buffalo Bills 1976 Yearbook