Dan Rafael of ESPN pointed out recently that Floyd Mayweather Jr. (45-0, 26 KO’s) with his fame and fortune will never be able to have a legacy because he’s failed to fight Manny Pacquiao (55-5-2, 38 KO’s). I’m not sure that a fight against Pacquiao is really needed for Mayweather to cement his legacy.
The only thing good that could come out of a Pacquiao-Mayweather fight now is that it would attract a lot of fan interest, but it wouldn’t mean much for Mayweather’s legacy to beat Pacquiao now. Pacquiao has lost 2 out of his last 3 fights, and his promoter Bob Arum had to back him off of good opposition and put him in against one of his struggling Top Rank stable fighters Brandon Rios for Pacquiao to stop losing.