Mosley stops Mayorga

Ricardo Mayorga falls to his knees with 15 seconds left in the 12th round after taking a shot from Shane Mosley during their super-welterweight bout Saturday night.  (Gina Ferazzi / Los Angeles Times)

Shane Mosley lands a left jab to the cheek of Ricardo Mayorga during their super-welterweight fight on Saturday night.  (Gina Ferazzi / Los Angeles Times)

Ricardo Mayorga lands a shot inside against Shane Mosley during their super-welterweight fight on Saturday night.  (Gina Ferazzi / Los Angeles Times)

Shane Mosley walks away from a fallen Ricardo Mayorga, who he dropped for a second time in the 12th round to win their super-welterweight bout on Saturday night.  (Gina Ferazzi / Los Angeles Times)

Shane Mosley reacts to the cheers of the crowd after defeating Ricardo Mayorga with a knockout in the 12th round of their super-welterweight bout Saturday night at Home Depot Center.  (Gina Ferazzi / Los Angeles Times)

Andre Berto lands a body shot to challenger Steve Forbes during their 12-round WBC welterweight championship fight on Saturday night at Home Depot Center. Berto won a unanimous decision.   (Gina Ferazzi / Los Angeles Times)

Steve Forbes lands a punch to the face of Andre Berto during their 12-round WBC welterweight championship fight. Berto would take a unanimous decision to remain unbeaten at 24-0. Forbes, who lost to Oscar De La Hoya in May, is now 33-8.   (Gina Ferazzi / Los Angeles Times)

Hilario Lopez, who was knocked down in the first round, covers up as Craig McEwan batters him against the ropes. McEwan remained unbeaten with a unanimous decision in their middleweight bout Saturday night.  (Gina Ferazzi / Los Angeles Times)

Craig McEwan of Scotland lands a shot to the chin of Idaho‘s Hilario Lopez during their eight-round middleweight bout on Saturday night.   (Gina Ferazzi / Los Angeles Times)