Courtesy of Wikipedia.org
Rikishi was released by the WWE on July 16, 2004, following repeated requests from the WWE that he lose weight. He continues to wrestle on the independent circuit. In the course of his twelve year career with the WWF/WWE, he competed in ten Royal Rumbles, eliminating a total of twelve other wrestlers.
In October 2005, Fatu shortened his ring name to Kishi after being notified by WWE legal representatives that WWE owned a trademark on the name "Rikishi". Fatu as Kishi would go on to operate Nu-Wrestling Evolution, a professional wrestling promotion based in Italy. Fatu would be involved in an angle with Scott Steiner and Vampiro that would see Kishi suffer a (kayfabe) concussion that would keep Kishi out of in-ring competition forever. After this, Kishi's character would be used as an on-screen commissioner only.
It also said on the site that he's brothers with Umaga/Jamal and real life cousins with The Rock and Yokozuna, which is something i never knew