May 4, 2013; Las Vegas, NV, USA; Floyd Mayweather (black gloves) and Robert Guerrero (red gloves) during their WBC Welterweight title fight at the MGM Grand Garden Arena. Mandatory Credit: Jayne Kamin-Oncea-USA TODAY Sports
Floyd Mayweather (black gloves) shows no mercy to Robert Guerrero (red gloves) during their WBC Welterweight title fight.
Floyd Mayweather Jr., left, quickly jukes away from the punch of Robert Guerrero.
Money in the bank
Floyd Mayweather Jr. celebrates his unanimous decision victory against Robert Guerrero in their WBC welterweight title bout at the MGM Grand Garden Arena.
Swing and a miss
Daniel Ponce De Leon manages to avoid a swift punch from Abner Mares.
Abner Mares lands a hard left hook for a knockdown against Daniel Ponce De Leon.
Daniel Ponce de Leon climbs off the canvas in the second round. Abner Mares is ready for more.
Leo Santa Cruz, left, demolishes the jaw of Alexander Munoz in the fourth round.
On the ropes
Leo Santa Cruz, left, is pulled back by referee Vic Drakulich as Alexander Munoz hangs on to the ropes after a knockdown in the fifth round.
Leo Santa Cruz reacts after beating Alexander Munoz by technical knockout in their USBA junior featherweight title fight.
Duck and cover
Gabriel Rosado (black gloves) puts on some evasive maneuvers to protect himself from the fisticuffs of J'Leon Love (white gloves).
J'Leon Love, left, lands a punch against Gabriel Rosado. Rosado returns the favor.
J'Leon Love, left, blasts Gabriel Rosado with a body punch during their NABF middleweight title fight.