Leinster say that Johnny Sexton and Mike Ross are both injury concerns heading into the Pro12 Christmas fixtures.
Sexton is a doubt for this Sunday's derby against Munster at Thomond Park with a quad muscle injury while Ross could also miss the start of Ireland's Six Nations title defence after being told that his hamstring strain is likely to take up to six weeks to heal.
However, Leinster do say that Sean O'Brien is in contention for this week's trip to Limerick after getting the all clear to return to full-contact training after his inner-ear problem.
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