Stade Français have confirmed that Rémy Martin and Dimitri Szarzewski will be out of action for at least one month.
Rémy Martin, Stade Français flanker, and his club team-mate hooker Dimitri Szarzewski did not finish the game last Saturday afternoon at Saint-Denis, when France defeated Argentina 27 - 26.
Rémy Martin is ruled out for five weeks, while Dimitri Szarzewski may be out for a little longer.
Flanker Martin has strained ligaments in his left thumb, while combative front row Szarzewski is struggling after he took a heavy knock to his left knee.
The two French internationals will miss the back-to-back games against Sale Sharks, on 10 December at Parc des Princes, with the return fixture arriving a week later at Edgeley Park.
The French league-leaders currently sit top of Pool three on nine points, but they know the forthcoming clashes with second-placed Sale are likely to decide qualification from the group.