He then signed with WWE in 2021 and was assigned to the NXT brand as Solo Sikoa before being called up to the main roster a year later, debuting at Clash at the Castle.

Fatu was born into the Anoaʻi family of Samoan wrestlers, which includes his father Rikishi and older brothers Jonathan and Joshua.

[6] On January 25, 2019, Fatu would win the FSW Nevada State Championship, holding the belt for 149 days until losing to Hammerstone in June.

[7] In August 2019, Fatu defeated Watson to win the Arizona Wrestling Federation (AWF) heavyweight title, which he held for 418 days until losing it in January 2021.

[16][17] He faced Grimes for the title on the April 12 episode of NXT and in a triple threat match involving Carmelo Hayes at Spring Breakin' on May 3, but was unsuccessful.

[29] On Night 2 of WrestleMania 39 on April 2, Sikoa assisted Reigns to retain the Undisputed WWE Universal Championship against Rhodes in the main event.

[30] On May 6, at Backlash, Sikoa and The Usos defeated Owens, Sami Zayn and Matt Riddle in a six-man tag team match.

[31] At Night of Champions on May 27, Sikoa and Reigns challenged Owens and Zayn for the Undisputed WWE Tag Team Championship in a losing effort.

[35] Sikoa and Jimmy, who had rejoined the stable, would enter a feud with a returning John Cena and AJ Styles in September.

[42] In the absence of Reigns, Sikoa started a storyline where he appointed himself as the de facto leader of The Bloodline, exiling Jimmy Uso and recruiting Tama Tonga as his right-hand man, much to the fear and confusion of Paul Heyman.

[50] On August 3, at SummerSlam, Sikoa failed to win the title from Rhodes in a Bloodline Rules match after interference from the returning Reigns.