獣神サンダー・ライガー
Zenk was introduced to professional wrestling by Road Warrior Animal, who he met at a bodybuilding contest. He was trained to wrestle by Brad Rheingans and Eddie Sharkey. He debuted in early 1984 with Mid-South Wrestling in Louisiana. In mid-1984, Zenk joined the Minneapolis, Minnesota-based American Wrestling Association, where he performed as an undercard wrestler until September 1985. He was named Rookie of the Year for 1984 by the "Wrestling Observer Newsletter", tying with Jushin Liger.