5 Reasons John Cena might retire at Wrestlemania 34

#3 The final run

Cena and Styles

Speaking of credible opposition, there was no doubt AJ Styles was made for John Cena when the pair met earlier this year. Three times they offered us classic encounters and hugely entertaining matches rife with both high-flying spots and incredible, unforeseeable reversals galore.

It could be argued that the skill put on display here is why Styles yet again finds himself holding the WWE's most coveted prize. Cena played a huge part in that. If Cena were to walk away at Wrestlemania, he'd be leaving after one hell of a final 24 months.