3. Brock Lesnar
wwe.comAny big match that is yet to see a rematch always has potential to be revisited at some point. Brock Lesnar and CM Punk had their well anticipated encounter at Summerslam 2013 and this epic match ended with the beast incarnate standing tall. Obviously with Punks sudden departure and Lesnars limited schedule, there was no opportunity for this story-line to be continued. There are a few elements which could add fuel to the fire if this story-line was revisited. Firstly, CM Punk would naturally want to avenge the Summerslam loss and bearing in mind what unfolded at Wrestlemania XXX, Lesnar would have bragging rights over Punk due to ending The Undertakers undefeated streak.