Tim Tszyu, the undefeated Australian star, returns to the ring to defend his interim 154-pound title against Carlos Ocampo in the main event of a doubleheader from Queensland, Australia. Tszyu, the son of boxing legend Kostya Tszyu, dominated former world champion Tony Harrison to win the belt in March. Ocampo has 22 KOs in 34 wins, with his only losses coming to Errol Spence Jr and Sebastian Fundora. Plus, undefeated 122-pound contenders Ra’eese Aleem and Sam Goodman clash. Live on SHOWTIME.