5 Superstars who need to win the Greatest Royal Rumble 

#2 Rey Mysterio

Will Rey Mysterio return as a full-time member of the WWE roster?

Dave Meltzer of the Wrestling Observer Newsletter recently reported that Rey Mysterio's appearance at the Greatest Royal Rumble would be a one-off.

However, a WWE return in a more permanent capacity appears to be imminent for the former World Champion after he wraps up his existing commitments.

If Mysterio wins the Greatest Royal Rumble and eventually returns as a member of the Raw roster, he could easily emerge as one of Roman Reigns' first challengers for the Universal Championship.