#4 vs Sami Zayn
Over the years John Cena has not exactly been known for putting over younger talent. He buried the Nexus back at Summer Slam 2010. And he has halted the momentum of many a superstar over the years. Including Rusev who has still not really recovered from Cena beating him.
However, Cena has somewhat warmed up to putting over newer talent in recent times as has been pinned just this year by the likes of Bray Wyatt, Roman Reigns and Shinsuke Nakamura.
So, if Cena is to retire soon, he should put over one last up and comer in order to create a new star in WWE. One name that springs to mind is Sami Zayn. Zayn is still relatively new to WWE and has yet to establish himself as a real star.
He has also recently turned heel. Meaning that the pair can now have a proper feud. Granted, they have already wrestled when Cena beat Zayn in a US open challenge match. But Sami wasn’t even a proper member of the roster at that time.
So, now Zayn is establishing himself as a very annoying heel, he an Cena would likely be able to have a very entertaining programme which would probably even get Cena cheered for a change. And if the pair does feud, Zayn should go over as it would make him a huge start in WWE.