Current UFC Lightweight Champion Conor McGregor recently sat down for an interview with FOX SPORTS and discussed a possible appearance at WrestleMania 33. McGregor was very outspoken about WWE and the companies superstars over the course of 2016, but has never ruled out a possible appearance:

“Never say never. I know there’s been conversations. I know Triple H was at the show (UFC 205). I’d love to go to that WWE and have a real knock. Let one of them have a real knock and see what’s what. We’ll see. There’s conversations ongoing. I’ve turned down some things, conversations still ongoing.”