Former Ireland international Willie Duggan has died at the age of 67.
Duggan was widely regarded as one of Ireland's best players, making 41 appearances between 1975 and 1984.
He toured New Zealand with the British and Irish Lions in 1977, playing in all four Tests as the All Blacks won the series 3-1.
He died following a suspected heart attack on Monday morning.
Sad news today that Ireland legend Willie Duggan has passed away. Our thoughts & prayers are with his family & friends. May he rest in peace pic.twitter.com/HVFUfOaUXH— Irish Rugby (@IrishRugby) August 28, 2017
Irish Rugby wrote on Twitter: "Sad news today that Ireland legend Willie Duggan has passed away. Our thoughts & prayers are with his family & friends. May he rest in peace."
Leinster Rugby, his former province, wrote on Twitter: "Very sad news from Kilkenny this morning of the passing of Leinster & Ireland Rugby legend Willie Duggan. Ar dheis De go raibh a anam. #RIP."
Duggan latterly ran Willie Duggan Lighting Ltd, based in Kilkenny.
He was, along with Wales' Geoff Wheel, the first player to be sent off in a Five Nations match in 1977.
Both men were sent off by referee Norman Sanson for fighting following a lineout during the game at Cardiff Arms Park.