Coach Bruce Pearl announced the suspension Saturday after Bowers had been listed as a starter. Bowers had been averaging 12.1 points and 9.6 rebounds.
Auburn said in a statement that Pearl had been made aware of a potential rules violation after Auburn beat LSU 73-70 in overtime Friday in the quarterfinals.
Auburn and basketball officials say they will not comment further while they gather information. He started 34 games for Auburn (15-19).