Michel Rivera vs. Frank Martin

A pair of rising undefeated lightweight contenders will clash in a high-level crossroads main event as Michel “La Zarza Ali” Rivera battles Frank “The Ghost” Martin from The Chelsea inside The Cosmopolitan of Las Vegas. The winner puts themselves one step closer to a world title opportunity in the stacked 135-pound division. Plus, former world champion José Uzcátegui returns to action against unbeaten former amateur standout Vladimir Shishkin and bantamweight contenders Vincent Astrolabio and Nikolai Potapov face off. Live on SHOWTIME.

Claressa Shields vs. Vanessa Joanisse

Following an MMA appearance in PFL earlier this year, Claressa Shields (14-0) returns to the boxing ring to face Vanessa Joanisse (7-1).

Tim Tszyu vs. Terrell Gausha

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.