Shane Mosley confirms he will fight Fight in Las Vegas on May 1 . Shane Mosley turns to Mosley after collapse of his clash with Manny Pacquiao . Mayweather will take place under blood testing procedures that Pacquiao refused to accept . `` More importantly , he is also happy to set the precedent for random blood testing in order to ensure fair and safe contests for all fighters . '' Mosley agreed fight after unification bout with Andre Berto was scrapped May 1 .
Shane Mosley confirms he will fight Fight in Las Vegas on May 1 . Shane Mosley turns to Mosley after collapse of his clash with Manny Pacquiao . Mayweather will take place under blood testing procedures that Pacquiao refused to accept . Mosley agreed fight after unification bout with Andre Berto was scrapped May 1 .