Oscar De La Hoya has tipped Manny Pacquiao to cause 'some damage ' against Floyd Mayweather during their May 2 showdown in Las Vegas . De La Hoya knows all about both boxers having lost to both Pacquiao and Mayweather during his professional career and believes the Filipino will be a tough challenge for the unbeaten American due to his southpaw stance . The Golden Boy Promotions founder , who lost to Mayweather in May 2007 and Pacquiao in June 2008 , also revealed his excitement at being able to see the two box office fighters go toe-to-toe in the ring . Oscar De La Hoya believes Floyd Mayweather will face a tough test when he takes on Manny Pacquiao . De La Hoya , speaking to Fight Hype , said : 'It 's just gratifying to know that his fight is finally taking place . 'On May 2 we are finally going to have the opportunity to watch Floyd Mayweather vs Manny Pacquiao . ' A lot of people can argue it is maybe a few years too late but I really do feel that Mayweather and Pacquiao still have a lot left in the tank to make it a really good fight . As a boxing fan I 'm really looking forward to it . ' I have always preached to the boxing fans , to the writers and the reporters that we must demand the best fights . We must demand the best fighting the best . Mayweather defeated De La Hoya at the MGM Grand Garden Arena back in May 2007 . De La Hoya also fell to a defeat against Pacquiao during a bout at the MGM Grand Garden Arena in June 2008 . 'As long as the public is asking for these great fights then we have a great chance of seeing them . ' When asked if Pacquiao will be Mayweather 's hardest test to date , De La Hoya replied : ' I believe so because you have take into account that Pacquiao is a southpaw . 'If he has the legs for 12 rounds to move inside , outside , side to side and throw a lot of punches then I really do feel that Pacquiao can do some damage to Mayweather . 'But then again Mayweather is a masterful boxer . He is a master at defence so it is just going to be a really entertaining fight . '
Manny Pacquiao faces Floyd Mayweather in Las Vegas on May 2 . Oscar De La Hoya believes Mayweather will face tough challenge . The American promoter lost to Pacquiao and Mayweather during career . READ : 50 Cent planning £1m bet on Mayweather beating Pacquiao . CLICK HERE for all the latest Mayweather vs Pacquiao news .