How does a man whos only had two victories at WrestleMania rank this high? When one of those wins ended the Undertakers undefeated streak at Mania. Brock Lesnar debuted in WWE just after WrestleMania X-8 in 2002 and would wrestle at the next two Showcase of the Immortals, defeating Kurt Angle for the WWE Championship. He then lost to Goldberg at WrestleMania XX in what was then a rare Raw versus Smackdown battle during the brand split. Lesnar was leaving WWE to try his hand at an NFL career, and fans were hip to it, jeering both him and the also-departing Goldberg.When Lesnar returned the night after WrestleMania XXVIII, he was on a much more limited schedule. He would lose at Mania XXIX to Triple H before defeating Undertaker last year and ending the Deadmans streak at 21-1. Lesnar heads into Sundays WrestleMania as the WWE World Heavyweight Champion.