Confirmed! Sean Cronin to miss Six Nations with a Grade Two hamstring tear
Sean Cronin's absence from the Six Nations has been confirmed after he was ruled out for ten weeks with a Grade Two hamstring tear.
Cronin suffered the damage in the Pro12 romp against Zebre ten days ago and, although fears that he may have ripped his hamstring of the bone have been allayed, his injury is a major blow for a player who had solidified his status as back-up to Ireland captain Rory Best.
His injury now opens the international window for his club colleague James Tracy and Munster's Niall Scannell, with Ulster's Rob Herring and Connacht's Dave Heffernan also in the reckoning.
However, there was better news for Leinster ahead of their round six clash with Castres as they unveiled no new fresh injury concerns as they bid to secure a home quarter-final in the Champions Cup with Sean O'Brien likely to return.
Isa Naewa was withdrawn early in the second-half with a dead leg and will be assessed further this week. Rob Kearney came through the Montpellier game with no issues after his return from an ankle injury and is available for selection.
Robbie Henshaw was withdrawn from the game as a precaution with tightness in his thigh and will be assessed further this week. O'Brien had a tightness in his calf last week and wasn't risked but will also be assessed this week.