LAS VEGAS – Mexican superstar Saul "Canelo" Alvarez scored a 10th round technical knockout victory over Alfredo “El Perro” Angulo in front of 14,610 fans at the MGM Grand Garden Arena in the main event of Saturday’s “TOE TO TOE: CANELO vs. ANGULO” on SHOWTIME PPV. Canelo (43-1-1, 31 KOs) landed a vicious left uppercut that rocked “El Perro’s” head back at 0:47 of the 10th round.  Sensing Angulo was taking too much punishment, referee Tony Weeks stepped in and halted the exciting battle.

Many fans were angry with the stoppage, as the crowd showered Week's decision with a deafening chorus of boos.

Some fans began to pelt the ring with objects and others were throwing objects at Canelo and his team as they walked back to the dressing room.

"No, I'm not surprised that happened. He brought a lot of his fans. There were a lot of people here for him. A lot of his fans came to see him and obviously they were disappointed with what happened. They were upset," Canelo said.