#2 The Undertaker
At WrestleMania 33, The Undertaker was, what most fans believed, retired by Roman Reigns, as he left his hat, gloves and coat in the middle of the ring after losing to Reigns.
But The Deadman returned a year later at WrestleMania 34, facing John Cena, and once again at The Greatest Royal Rumble, facing Rusev in a casket match. And he's going to return once again at the Super Show-Down event, where he will face Triple H.
New Champs in WWE! More RIGHT HERE
If WWE want to bring The Undertaker back for one final big match, possibly facing Reigns at WrestleMania 35, that would rob one talented RAW Superstar of a place in the main event. Finn Balor, Kevin Owens, Braun Strowman - all of them deserve to face Reigns in the WrestleMania main event, and it would be cruel on these three Superstars if a semi-retired wrestler is brought back for one event.