Toulon - Toulon's Australian playmaker Matt Giteau will be out for up to three weeks after having re-injured his troublesome groin, according to coach Jacques Delmas.
Giteau underwent an operation on his groin in January, and only made his return to action in the 19-16 European Cup quarter-final defeat by Racing 92 last weekend.
The 33-year-old Australian, capped 102 times by the Wallabies, limped off during that game after an hour.
He will miss Saturday's Top 14 match away to Pau and potentially Toulon's April 30 home game against Toulouse.