Mayweather should retire now
Hes still undefeated. Reflexes are probably slowing down opposed to getting faster. Pacquaio fight makes no sense now. Canelo and Guerrero IMO can give him problems. If Broner moves up in weight he'd give Mayweather problems. What more does PBF have to prove at this point? We all know hes #1 p4p. Hes just gonna lose his chin if he keeps fighting he should quit while hes still ahead. Take a page out of Marciano's book.
This is all in my opinion anyway I realize though I might get flamed.