Tighthead prop Salesi Ma'afu has joined Toulon after spending two seasons at Northampton Saints.
Ma'afu, 32, joins Samu Manoa in leaving Saints for the three-time European champions.
Speaking to Toulon's official website, Ma'afu said: "Toulon is a great club that has won many titles and this is a huge challenge for me.
"The fact that there are several Australians already here, such as Matt Giteau, Drew Mitchell and Quade Cooper helped me make my decision. It was part of it but not essential. They are great players and it will be an honour to play with them."
The prop made 14 Test appearances for Australia having made his debut in 2010, and was part of the squad that finished third at the 2011 Rugby World Cup.