Leinster and Ireland captain Caelan Doris has been ruled out for four to six months with a shoulder injury.
The backrower had a procedure last Friday for his injury he sustained during the Champions Cup semi-final defeat to Northampton.
Doris was not named in Andy Farrell’s 38-strong group for the Lions Tour last week, indicating a lengthy upcoming absence.

Have rugby fans stopped caring about the URC?
“I have [spoken to him],” said Farrell, when asked about the 27-year-old Doris. “You can imagine he’s devastated. He would have definitely been in the mix [to be Lions captain], he’s such an experienced player and leader.”
The Counter Ruck: the rugby newsletter from The Irish Times
Edinburgh sign Piers O’Conor on two-year deal from Connacht
Champions Cup without Munster is ‘inconceivable’, says Craig Casey ahead of important Benetton showdown
Gordon D’Arcy on tough times in rugby: I cried in private. Leaned on those I trusted. I came out the other side
Meanwhile, James Ryan came through the game against Zebre at the weekend with no issues after his return from injury.
James Culhane will be further assessed this week for an arm injury, while there are no further updates on Jordan Larmour, Will Connors and Brian Deeny.
Leinster will play Glasgow Warriors at the Aviva Stadium on Saturday in the United Rugby Championship (KO: 7.35pm, live on RTÉ2 and Premier Sports 1).