#1 Brock Lesnar
Brock Lesnar's first stint in the WWE came to a controversial end. Despite being one of the most dominant Superstars in the company, Lesnar wanted to make a career playing football in the NFL. His last match at the time involved him losing to Goldberg at WrestleMania XX in 2004 amidst jeers from the crowd. Prior to that, he had beaten Hardcore Holly on SmackDown just a couple of weeks ago.
Now, Lesnar made his return to WWE back in 2012 and has gone on to dominate the entire roster. He's decimated John Cena, broken The Undertaker's WrestleMania streak, and won multiple world titles since returning. But he wrestled his first match on WWE TV on the SmackDown premiere on FOX in October last year.
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The Beast challenged Kofi Kingston for the WWE Championship in an encounter whose outcome is still difficult to swallow. Lesnar fought in a televised match for the first time in over 15 years, only for him to deliver an F5 on Kingston right out the gates and pin him, thereby ending the ordeal in less than 10 seconds.