Joseph Fatu, better known by his ring name Solo Sikoa, is an American professional wrestler signed to WWE, where he performs on the SmackDown roster.

He held the NXT North American Championship once in his career. In 2021 he signed with WWE, being sent to the Performance Center to train. On the November 2 episode of NXT 2.0, under the ring name Solo Sikoa, he made his debut by defeating Jeet Rama. Subsequently, he triumphed over several opponents at both NXT 2.0 and 205 Live such as Andre Chase, Edris Enofé, Malik Blade, Ru Feng and Santos Escobar, and had a small feud with Boa, from which he emerged victorious on January 25 after winning a no disqualification falls count anywhere match. He suffered his first loss on March 1, at NXT 2.0 against Gunther.

Fatu is the son of Rikishi and is also the brother of the Usos, as well as nephew of Umaga and second degree of The Rock. He is also a second cousin of Roman Reigns and Rosey as well as a relative of Yokozuna.