John Cena's 5 greatest WWE moments 

5. Feud with CM Punk

John Cena vs CM Punk is a rivalry that needs no introduction. The two were the complete antithesis of each other, with Cena being a purebred WWE performer, while Punk was a beloved indie sensation.

Although they were as opposite as black and white, they had cracking chemistry in the ring. Each match of theirs was must watch, and the promo segments a treat.

If there was ever a list of John Cena's greatest rivals, Punk would surely be near the top of the list. This feud was fire and everyone knows it.