Hiroki Sumi made a surprise appearance in last Friday's 50-man Royal Rumble match at The Greatest Royal Rumble event in Jeddah, Saudi Arabia. Sumi is a former sumo wrestler who wrestled as Hishofuji during his twelve-year career. Sumi entered the ring at #7 but was quickly being eliminated by Mark Henry.
Dave Meltzer noted on the latest edition of Wrestling Observer Radio that the prince who wanted to bring the event to Saudi Arabia made a request to Vince McMahon; he wanted several wrestlers on the show, most notably The Undertaker, The Ultimate Warrior and Yokozuna. It appears that the prince didn’t know that the Ultimate Warrior and Yokozuna passed away.
Meltzer said that while it's not confirmed, the word going around is that Sumi was added to the match was because McMahon wanted someone that looked like Yokozuna.