Garry Ringrose, Johnny Sexton, and Caelan Doris ruled out of Leinster's clash with Munster

Ringrose has sustained another jaw injury

Leinster's Garry Ringrose is tackled by Northampton Saints' Tom James at the RDS Arena. Picture: Lorraine O'Sullivan/PA

Garry Ringrose, Johnny Sexton, and Caelan Doris will miss Leinster's St Stephen's Day clash with Munster.

Ringrose made his return from a fractured jaw in the Champions Cup win against Northampton on Saturday and lasted until the 75th minute, although he missed 11 first-half minutes due to a head injury assessment after a clash with Jimmy O'Brien.