Question: What member of the Big 12 Conference and competes in NCAA Division I, fielding 16 varsity teams, had an American college wrestling icon considered one of the best American amateur wrestlers in recent history?
Sentence (from "Iowa State Cyclones"): The university is a member of the Big 12 Conference and competes in NCAA Division I, fielding 16 varsity teams (6 men's and 10 women's teams) in 12 sports.
Relevant evidence: No