Tommy Lloyd and Bobby Hurley met near midcourt during pregame, exchanging pleasantries, patting each other on the back.
Chaos ensued at the end of Arizona's win over in-state rival Arizona State, which included a headbutt and no handshake line.
Arizona State coach Bobby Hurley said Arizona had "no class" in their win Saturday after trash talk led to a Sun Devils player headbutting Wildcats star Caleb Love.