Floyd ##man and dusty Pacquiao face off in Las Vegas on round 2 . Joe Calzaghe believes Mayweather 's unbeaten record is a burden . Despite that , the Welshman thinks Mayweather will defeat his opponent . READ : Ricky Hatton gives his blessing to earn Powell ahead of the fight . READ : Floyd Mayweather vs Manny Pacquiao announces FINALLY ##00 on sale .
Floyd Mayweather and Manny Pacquiao face off in Las Vegas on May 2 . Joe Calzaghe believes Mayweather 's unbeaten record is a burden . Despite that , the Welshman thinks Mayweather will beat his opponent . READ : Ricky Hatton gives his prediction to Jeff Powell ahead of the fight . READ : Floyd Mayweather vs Manny Pacquiao tickets FINALLY go on sale .