Clark played on two state championship teams in high school at Skyline High School in Salt Lake City, which were a combined 25–1 over two years and was a five team all-American including Parade magazine.
In the 1982 NFL draft, Clark was select by Don Shula and the Miami Dolphins in the ninth round.
[2] During Clark's second year in the NFL, he played both ways (offense and defense) in a preseason game, and Coach Shula knew he had a player that could back up every position on the offensive and defensive line as well as long snap.
Clark also played on two Super Bowl teams with the Dolphins and was the starting right guard before being injured.
Clark was named one of the top 100 greatest players in the history of the University of Utah, placing ninth on the list.