Who has performed more upsets in boxing history?

[boxingbuff]

The reason for this thread is because I'm 1-3 against Manny Pacquiao. He's cleaned me out. I am never betting against Manny again.

Name a fighter who's had the most upset wins in boxing history.

How about the most that were BIG upsets? And won the World Championship?

Muhammad Ali had 2 very big upsets against fighters(Liston and Forman)who were said to be invinsible and unbeatable.I believe he was a 8-1 underdog against Sonny Liston,and a 5-1 underdog against George Forman.

Both of these upsets were fights in which he won the World Championship.

[gibo]

dlh has performed the most upsets in boxing history. Getting his *ss slammed by SSM (2) PBF and Manny Paquiao