Great undercard fights

It seems like these days, there are a lot more boring undercard fights than there are good/great ones. Let's name some great undercard fights. Extra credit for naming one that most people have forgotten. Try to also list which main event they were under

I'll start with a few.

Gomez vs. Pintor (an obvious one... undercard of Hearns-Benitez)
Arce vs. Hussein (Morales-Pacquiao I)
Jorge Paez Jr. vs Derrick Campos (Barrera-Juarez II)
Golota vs. Mollo (Jones-Trinidad)
Cotto vs. Torres (Klitschko vs. Peter)
Luevano vs. Dib (kidding...)

Norris vs. Brown (Undercard of JCC-Holligan)
G-Man vs. Jackson (Undercard of JCC-Randall II)
Izzy vs. Jhonny (Undercard of MAB-Juarez II)
Gatti vs. Ruelas (Undercard of Lennox-Golota)

Aww man i remember the undercard of the Lennox Lewis - Micahel Grant fight.

Who were those two little guys, fuck! Who were they... little fuckers, they just wouldn't stop taunting one another. Im pretty sure they were mexican ???

That was a pretty entertaining fight though. Early boxing memory for me too.

i though last year undercard of hopkins - wright was amonsot and katsidis (gr8 fight)