Cork hurler Brian Murphy reportedly broke his collar bone during Bride Rovers' County Senior Hurling Championship second round win over Ballinhassig at Páirc Uí Chaoimh yesterday.
The injury will keep him out of next Sunday week's Munster SHC final between Cork and Limerick, with former Rebels full-back Diarmuid O'Sullivan tweeting that the absence of Murphy would be 'a huge loss'.
A long-serving member of the county's full-back line, Murphy is one of only two survivors left from Cork's 2004 All-Ireland winning side - Tom Kenny is the other.
He was hugely influential in their recent semi-final win over Clare, performing an excellent man-marking job on Tony Kelly and captaining the team in Pa Cronin's absence.
The injury could keep the 30-year-old defender out for up to eight weeks, meaning he would miss the Gaelic Grounds clash next week and a possible All-Ireland quarter-final should Cork lose to Limerick. If they win he may be able to get back in time for an All-Ireland semi-final on August 18.
Losing a player of the calibre of Murphy, an All-Star corner back in 2005, is a massive setback for Cork manager Jimmy Barry-Murphy who could switch Shane O'Neill on to Limerick full-forward Declan Hannon, the scorer of 0-9 in their semi-final victory over Tipperary.
Cork's regular skipper Pa Cronin, who recovered from illness to appear as a substitute against Clare, and shoulder injury victim Lorcán McLoughlin should be fit for the Munster decider with the former more likely to start.