#3 Seth Rollins
Members of the WWE respectfully call Seth Rollins "Crossfit Jesus" for good reason, the man is in incredible shape. He's the perfect candidate for being the ironman of the 2018 Royal Rumble Match.
Oddly enough, as long as Rollins is in the Rumble, this will be his first one since 2014. He was in the WWE Championship match in 2015, out injured in 2016, and screwed by Triple H in 2017.
A female WWE star said her life is in danger. Details HERE
I have a very good feeling that Rollins will be in the Rumble match, and even though he has a WWE Raw Tag Team Championship match against The Bar earlier in the evening, there is no doubt Rollins could be called upon for a lengthy run in the Rumble match as well.