With some big fights coming up soon, especially the UNDEFEATED fights(Cal v Kess and PBF v Hatton), and with potentially so much to gain for the winner and so much to lose for the fighter defeated it got me to thinking.
In which fight in histoy has one fighter gained the most while his defeated opponent has lost the most?

MAB v NAZ immediately came to mind for me. MAB was an established fighter but the win over NAZ really put him into the spotlight, especially as the fight followed his losses to Junior Jones and Erik Morales. His stature and popularity really went up from that point onwards.
On the flip side NAZ disappeared into obscurity....

What other single fights have had this much effect on two fighters careers?