#2 CM Punk vs The Rock
This rivalry is arguably very controversial. CM Punk was at peak of his career as WWE Champion in back in early 2013. His record-setting reign of holding WWE Championship for 434 days came to an end with The Rock defeating Punk at the Royal Rumble.
After the loss of title, Punk's career started to fell. He got a title rematch but was defeated by The Rock again. In an episode of Raw, Punk faced Royal Rumble winner John Cena for his number one contender match to the WWE Championship but he lost, yet again.
Punk tried to get his hands back on the championship but failed miserably. On 26 January 2014, Punk left WWE and retired from Pro Wrestling.
Edited by Shruti Sadbhav