Quade Cooper could make his Toulon debut on Saturday against Montpellier after being presented to the media on Tuesday.
The Australian international arrived this week after being part of the Wallabies' World Cup campaign.
Cooper was not part of the matchday squad for Saturday's final loss to New Zealand, and having not featured since the pool stages, is set to make his playing return this weekend.
"My focus was to do everything I could to play the best football at the World Cup, and now that that's finished I'm moving onto the next chapter and looking forward to playing on Saturday for Toulon," said Cooper.
"I'm just looking ahead, I'm going to give everything to represent this jersey, the supporters and the people. Yes there were long negotiations, I apologise for that.
"But sometimes you have to wait to have a nice surprise. I'm very happy and excited to be here, and very grateful to the club, the spectators and everyone involved for being so patient."
After a lot of controversy over whether the move would actually go through, Cooper arrived in France this week, and he is expected to start at ten against Montpellier on Saturday.
Toulon lost at Grenoble last weekend, although they did pick up a losing bonus point. They currently sit eighth in the table with three wins from seven games.