Fighters whose defining moment(s) were in defeat?

[hitmanhatton]

Michael Katsidis
Kermit Cintron

[Phil]

Kessler was the first that came to mind,
In-Jin Chi against Morales
Vargas against Tito

[Spicoli]

At both ends of the spectrum Bert cooper?Looked legitimized and a serious threat taking three of the better heavys in the world to the brink of stunning defeats,Mercer,Moorer and Champion Holyfield.While Vs Foreman and Carl Williams he went out soft and flat quit.All deats though.

Jake Lamotta

[Myk_Myk]

Emanuel Augustus comes to mind, especially vs Ward and Burton.