WICHITA, Kan. (AP) Wichita State University is conducting an internal investigation into allegations that men's basketball coach Gregg Marshall mistreated players, the school and Marshall have confirmed.

Stadium, a multiplatform sports network, said the inquiry began after the university learned it was conducting an investigation in which it interviewed 36 players and former coaches.

Former Wichita State forward Shaq Morris told Stadium he was punched twice by Marshall, the school's all-time winningest coach, during an October 2015 practice, and former guard Ty Taylor said he saw it happen.