PWInsider reports that former WWE Champion and wrestling icon, Rey Mysterio will be heading to the Greatest Royal Rumble in Jeddah, Saudi Arabia on April 27, 2018. Although WWE had not confirmed the report, there have been various speculations regarding Mysterio making a return to the WWE as a regular in-ring performer since his surprise Royal Rumble appearance as the #30 entrant in January, 2018. Rey, who left the WWE in 2015, is now a co-owner and performer of AroLucha. The Master of 619 has also expressed his desire to compete in New Japan Pro Wrestling various times in the past with going as far as saving Will Ospreay from an attack by Marty Scurll at Strong Style Evolved.
The Greatest Royal Rumble will air live from the King Abdullah Sports City on April 27, 2018 and will host the first-ever 50-Man Royal Rumble match in the history of WWE.