According to sources at PWInsider, there was a discussion inside the WWE of doing a singles match on the Greatest Royal Rumble Kickoff pre-show.
Originally, the plan was for Hornswoggle to wrestle Rob "The Giant" Araujo, who appeared for WWE as announcer WeeBL (or JB-Elf) for the Hornswoggle vs. El Torito WeeLC match at Extreme Rules 2014. Rob has also appeared for Hulk Hogan's Micro Championship Wrestling in the past. Plans were changed at some point in the day and they decided to put Hornswoggle in the 50-man Rumble match instead.
Araujo was flown to Saudi Arabia but not used.