Luke McGrath a doubt for Six Nations as Sexton to sit out Leinster's trip to Coventry

Luke McGrath's Six Nations involvement may be over before it has begun with confirmation on Monday that the Leinster scrum-half has suffered a knee ligament injury and faces up to eight weeks out of action.

Eight weeks would certainly rule the number nine out of the opening three rounds of the tournament and leave him scrambling for game time before the last two. If there is a silver lining it is that his absence isn't even longer.