Italy and Toulon lock Santiago Dellape will be out of the action for at least six weeks due to ligaments injury.
The former Biarritz Olympique player got injured whilst training on Tuesday. He suffers from an internal right knee ligament twist and will be out for six weeks.
The RCT will have to do without its second row players until Christmas. The player will not play the European Challenge Cup Rounds 3 and 4 against Montpellier.
The International Italian is unlucky since he had started playing again last weekend after several weeks of being unavailable due to a chest injury. He will also miss November test matches with the Italian squad.