#1 John Cena
There had been rumours floating around the internet about WWE finalizing John Cena to fight Lars Sullivan on the 'Road to WrestleMania'. It had come as great news for the 'Cenation'. Fans haven’t seen Cena wrestle a one-on-one match since his last year's WrestleMania bout against The Undertaker.
However, Lars Sullivan suffered an unfortunate anxiety attack in January. And, he has been absent from WWE ever since that attack. And we do not Sullivan to be back too soon, which also means that John Cena won't be wrestling anytime soon.
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More recently, it has also been noted that Cena's current project will keep him busy till April 1, which will be the go-home episode of RAW for WrestleMania. So, Cena apparently doesn’t have the time to build a feud leading up to the grand show.
In conclusion, we can say that it's highly unlikely that John Cena will wrestle at WrestleMania 35.