The 29-year-old, who played sevens for both New Zealand and Samoa, was contracted to Valence Romans, which played in the Fédérale One, the third tier of French rugby, before earning promotion into the Pro D2.
Tuatagaloa was in contract negotiations with the side for the new season, but after being named in the Samoan squad for the first time for the upcoming Pacific Nations Cup, he was given an ultimatum.
“They offered me a contract before I knew I was going to be selected for the Samoan team,” Tuatagaloa told Stuff.