Shane Mosley was scheduled to face Andre Berto for a WBC and WBA Welterweight title unification bout on January 30 , 2010 . However , the fight ( and entire undercard ) was called off on January 18 , 2010 , due to an earthquake in Haiti and Berto losing several family members in the disaster . Negotiations for a proposed matchup between Mosley and Floyd Mayweather Jr. immediately began afterwards , ending with both sides agreeing to a set date of May 1 , 2010 , at the MGM Grand Garden Arena in Las Vegas , Nevada . The fight was billed " Who R U Picking ? " The earliest pre-fight hype came after Manny Pacquiao 's fight with Joshua Clottey on March 13 , 2010 , when HBO aired a brief interview , confrontational-styled show entitled , " Face Off " with Max Kellerman hosting and leading the conversation
earthquake in Haiti
2010 Haiti earthquake
Floyd Mayweather Jr. vs. Shane Mosley