Undisputed WWE Champion John Cena vs. CM Punk
Perhaps the final chapter in one of WWE's greatest rivalries will be written when Undisputed WWE Champion John Cena defends the title against CM Punk at WWE Night of Champions.
Having already retained the title against Randy Orton after winning it from Cody Rhodes on his farewell tour, the self-professed "Last Real Champion" has promised to ruin wrestling by taking the title with him when he leaves.
The pledge is reminiscent of when Punk took the WWE Championship in 2011 after beating Cena to win the title, but The Second City Saint maintains that he was trying to save WWE and not ruin it. Now, he will look to save it once more when he goes to war against his longtime rival in a match that the WWE Universe has been eagerly anticipating for a long time.