Weights from Las Vegas 


Erislandy Lara 153.5 vs. Vanes Martirosyan 153.75 (WBA super welterweight title)


Jermall Charlo 153 vs. Austin Trout 154 (IBF jr middleweight title)


Jermell Charlo 153.25 vs. John Jackson 153.5 (WBC super welterweight title)


Beibut Shumenov 199 vs. Junior Wright 199.5 (WBA cruiserweight title)

Venue: The Cosmopolitan, Las Vegas 

Promoter: Mayweather Promotions

Fight week kicked off Wednesday with media workouts at the UNLV Boxing Gym for the six fighters competing in the SHOWTIME CHAMPIONSHIP BOXING tripleheader of 154-pound world title fights this Saturday, May 21 from The Chelsea inside of The Cosmopolitan of Las Vegas.

 Working out Wednesday and headlining the event were WBA Super Welterweight World Champion Erislandy Lara and top contender Vanes Martirosyan. Televised coverage begins live on SHOWTIME at 9 p.m. ET/6 p.m. PT and features IBF Junior Middleweight World Champion Jermall Charlo taking on former champion Austin Trout plus undefeated challenger Jermell Charlo battling hard-hitting John Jackson for the vacant WBC Super Welterweight World Title.