UFC heavyweight Tai Tuivasa suffered a setback at UFC 331. He was knocked out in the opening minutes. The loss came in round one. It took place after a difficult seven-fight losing streak. He had just moved to American Top Team. Tuivasa made the gym move because he wanted to listen to new coaches and change his fight preparation.

He worked out with heavyweight Francis Ngannou for UFC 331. He spent time with Ngannou during camp. But Tuivasa got finished in round one anyway. The first-round defeat took place following his switch to American Top Team.