#2 Brock Lesnar is back (April 2, 2012)

Brock Lesnar had the greatest debut run for any WWE superstar. He won the King of the Ring, Royal Rumble, WWE championship. He defeated The Undertaker, The Rock, Hulk Hogan, and destroyed anyone who dared to stand in his path.
But, things went south pretty quickly. Lesnar quit the company after his infamous match with Goldberg at WrestleMania 30 and flipped the bird to Vince McMahon on his way out. It was pretty clear that we will never see Brock Lesnar in a WWE ring ever again, but you never say never in this business.
Brock announced his retirement from UFC in 2011, and rumours started floating that Lesnar is going back to WWE. WrestleMania 28 saw The Rock defeat John Cena much to the crowd's delight. Fast forward to Raw, and during the entire show, the crowd chanted for Brock Lesnar.
When John Cena called out The Rock in the main event of Raw, he got a returning Brock Lesnar for his trouble. For the first time in over eight years, Lesnar was in the WWE, and Miami crowd popped like it never has. Lesnar would F-5 John Cena much to the enjoyment of everyone watching. Fans had grown tired of the WWE, and Lesnar's return added a much-required freshness to a rather stale product.
Over the next five years, Lesnar became one of the biggest attraction of the WWE, and while views might differ on him, there is little doubt that there will never be anyone like Brock Lesnar ever again.
Becky Lynch has been challenged HERE.