CIAN HEALY AND JIMMY O' BRIEN could miss next Sunday's Heineken Champions Cup semi-final against Toulouse.
The pair left the field against Leicester on Saturday with head injury assessments in the 23-14 victory over the English side.
Andrew Porter came off for Healy, but a HIA happened five minutes before the end.
While O'Brien was replaced by Tommy O'Brien in the 71st minute.
If they are to make the game for Sunday, they will have to follow return-to-play protocols, say Leinster.
The game also saw the return of James Ryan and Rónan Kelleher.
Both have been ruled out since the Six Nations, while Max Deegan could be an option for the back row this weekend.
📢 | With 20,000 tickets already sold for Saturday's game with Toulouse, Leo Cullen has issued an injury update.
Read more 👉 https://t.co/sP7rqIHbW5#LEIvTOU #HeinekenChampionsCup pic.twitter.com/lsnUuqHNYO
— Leinster Rugby (@leinsterrugby) May 9, 2022
Jordan Larmour is recovering from a hip injury, while scrum-half Nick McCarthy will be assessed later in the week for a shoulder issue.
Toulouse overcame Munster in a place kicking competition after the side's couldn't be separated with 24-24 score.
Leinster have also confirmed tickets for this game are not part of the Season Ticket Pack for 2021/22 and as a result tickets went on sale this morning to Season Ticket holders and went on sale to the public at 2pm.
Over 20,000 tickets were sold to Season Ticket holders ahead of the general sale.
Pricing starts at €25 for adults, €10 for junior and €60 for a family of four, while a limited number of €10 tickets are available for adults also.