Tomorrow from the Chelsea at the Cosmopolitan, four world titles will be on the on line for the Showtime broadcast stemming from Las Vegas, Nevada. Erislandy Lara 153.5 vs. Vanes Martirosyan 153.75 Jermall Charlo 153 vs. Austin Trout 154 Jermell Charlo 153.25 vs. John Jackson 153.5 Beibut Shumenov 199 vs. Junior

Gervonta Davis (12-0 11KOs) stopped Recky Dulay (8-2 5KOs) in the first round of their bout as he dropped him two times with Dulay quitting after being leveled by another thudding straight left hand. Ronald Gavril (14-1 10KOs) knocked out Scott Sigmon (26-7-1 14KOs) in the eighth round. Super lightweight Ashley

Venue: MGM Grand, Las Vegas Promoter: Mayweather Promotions TV: PPV Floyd Mayweather 146 vs. Andre Berto 145 (WBC/WBA welterweight title) Roman Martinez 129.5 vs. Orlando Salido 130 (WBO super featherweight title) Badou Jack 167.5 vs. George Groves 168 (WBC super middleweight title) Jhonny Gonzalez 129 vs. Jonathon Oquendo 129 Vanes