Leinster will miss the services of Ireland international Dan Leavy for the remainder of the season following a knee injury.
The 24-year-old sustained the blow during Leinster's recently concluded European Challenge Cup victory over Ulster at Aviva Stadium where he played for just 11 minutes before leaving the field.
Leavy recently recovered from a calf injury that forced him to miss the Six Nations tournament for Ireland but now will be on the sidelines for a lengthy period following another serious injury as described by Leinster head coach Leo Cullen.
"Dan has had a bad injury. I don't want to get into too much detail. He will be out for a while. We will get it assessed and take it from there," said Cullen.
"It's a tough one for Dan."
Apart from Leavy, Leinster also had further injury blows with Rory O'Loughlin and Jamison Gibson-Park also sustaining a hamstring and head injury respectively.
"The squad is going to be so important," Cullen added.
"We will probably make a lot of changes against Treviso next week so it is going to be a great opportunity for a lot of our guys to showcase what they can do."