4 things that could happen in the main event of WrestleMania 34

#4 John Cena turns heel and finally retires The Undertaker

Cena has challenged the Undertaker numerous times recently

There has been diverse opinions among fans and critics surrounding The Undertaker's return, and after supposedly retiring last year, one final match with John Cena does not make sense.

The match has been long overdue though, and if there's a perfect time to pull off an incredible character transformation for Cena, it is now.

The WWE is lacking legitimate bad guys and with Roman Reigns already owning the yard, the 16-time World Champion needs to step up and turn heel.

There's a possibility that this match could end the show, and since the in-ring quality of this match cannot even rival other matches on the card, there will be a lot of pressure on these two superstars to create a Rock vs. Hogan kind of an atmosphere.

John Cena's quest to face The Undertaker could push him to the wrong side and ignite a fury within him to finally put The Phenom to rest in the main event of WrestleMania.