Manny Pacquiao faces Floyd Mayweather in Las Vegas on a few years . 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 .
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 .