Leinster back Fergus McFadden has been ruled out for the rest of the season after breaking his thumb against Toulon on Sunday.
The Irish international was forced to leave the field during the second-half of the game in Marseille, and will have surgery on Wednesday.
That will keep him out for up to eight weeks, meaning he will not feature again for Leinster in this campaign.
It gives him plenty of time however to prove his fitness as he bids to be part of Ireland's World Cup squad later this year.
After their loss in the Champions Cup semi-final, Leinster have little left to play for this season, with a place in the top four of the PRO12 now a very long shot.
They will be missing Kane Douglas for the rest of the campaign as well after it was confirmed he would require surgery on a back issue that will keep him out for three months.