Top super welterweight contender and rising star Tim Tszyu, the son of former unified champion Kostya, makes his long-awaited U.S. debut against U.S. Olympian and rugged veteran Terrell Gausha. Australia’s Tszyu has won his first 20 pro fights to make a name for himself as one of the most promising contenders at 154 pounds while Gausha has provided stiff competition for some of the division’s elite fighters. Plus, undefeated lightweight contender Michel Rivera vs. Joseph Adorno and Elvis Rodriguez vs. Juan José Velasco. Live on SHOWTIME.