Leinster are hopeful that Ireland duo Brian O'Driscoll and Jamie Heaslip should be available for selection for Saturday's Pool 2 clash against Clermont Auvergne.
O'Driscoll hasn't played since picking up a jaw injury whilst on duty for Ireland in the autumn internationals and Heaslip left the field last weekend at the Stade Marcel Michelin after injuring his ankle.
A final decision on the availability of the pair will be made on Friday morning.
Leinster have moved the game to the Aviva Stadium and are set to break the record attendance for a Heineken Cup match in Ireland with 41,000 tickets already sold.
After victories over Racing Metro and then Saracens at Wembley, Leinster lost their first European match away to the French champions on Sunday. They still remain at the helm of Pool 2, a point ahead of Clermont at the midway stage of the competition.