Back on April 4, 2004, Vitali Klitschko had his chance to avenge the savage beating Corrie Sanders had placed on his brother Wladimir only one year before. 

Wladimir Klitschko had been dispatched in a shocking upset that included four massive knockdowns that culminated in Wladimir collapsing helplessly to the canvass before the referee mercifully stepped in to stop the fight. 

Needless to say, Vitali, working Wladimir's corner, didn't look to happy. 

It also probably didn't help matters for Vitali to be within earshot of Sander's horrifying victory growl to conclude his massacre. 

Wladimir's career has been a strange one. He had been a brilliant amateur amassing a record of 134 wins against only six losses. Klitschko had also captured Olympic gold in the super-heavyweight division at Athens in 1996. 

As professional fighter, Klitschko dominated the division until making his 24th appearance against the journeyman Ross Puritty, who went on to knock Wladimir out in the final stages of the fight (Puritty, by the way, currently boasts a record of 31 wins against 20 losses).  

From there, Klitschko recovered and steamrolled the division with huge victories over Chris Byrd, Ray Mercer (massive KO), Botha, and Jameel McCline.

The massive loss to Corrie Sanders cast enormous doubts on Klitschko's future, however, he recovered once more. That is, until being derailed yet again against Lamont Brewster. 

But after that knockout loss, Klitschko never lost again. He's longer and stronger with each outing also evoking the kind of fighter he was supposed to be prior to those hiccup knockout losses in his career.