He is undefeated and the biggest draw in boxing so he is the de facto champion , Pacquiao the challenger .
Although Pacquiao has had numerous big fights in Las Vegas , this is undoubtedly Mayweather 's home turf .
Mayweather is undefeated and the biggest draw in boxing so Mayweather is the de facto champion , Pacquiao the challenger .
Although Pacquiao has had numerous big fights in Las Vegas , this is undoubtedly Mayweather 's home turf .