[1] There, he was a standout American football player,[4][5] and played tailback and linebacker on the school's defense-oriented team that went 13–1 during the 1977 season, with the Hawks recording six shutouts and allowing 4.5 points per game before progressing to the semifinals of the Class 1A state championship.

[8] During his freshman year, Weishuhn was a member of the Rams team that finished 14–0 and won the 1978 NAIA Football National Championship.

[12] He made his NFL debut with the Patriots on September 12, 1982, at the age of 22, in a 24–13 win over the Baltimore Colts.

[1] One of these sacks came against the Miami Dolphins on December 12, 1982, which prevented them from attempting a field goal near the end of the first half and ultimately helped the Patriots to a narrow 3–0 victory,[14][15] in a matchup that became known as the Snowplow Game.

[1] He also established the franchise record of 229 tackles in a single season,[10] which still stood at the time of his death in a fatal traffic collision.

Weishuhn was then traded to the Green Bay Packers, where he played in nine games for the 1987 season, before retiring from football at the age of 27.

[5][18] During his five-season NFL career, Weishuhn registered four sacks, one touchdown, and made four fumble recoveries in 39 games played.

[3] Together, they had three children: Brandi, Shannon, and Lauren, who played for the Angelo State Rambelles basketball team.

[11] After retiring from professional football, Weishuhn went back to his hometown of Wall and resumed cotton farming.