Warren Gatland the head coach of the Lions shakes hands with Sean O'Brien of the Lions following their team's 12-3 victory during the 2017 British & Irish Lions tour match between the Crusaders and the British & Irish Lions at the AMI...More

Sean O'Brien of Ireland is tackled by Aaron Smith of New Zealand during the international rugby match between Ireland and the New Zealand All Blacks at Aviva Stadium on November 19, 2016 in Dublin, Ireland.

Ireland player Jamie Heaslip gives Sean O'Brien a lift during Ireland Captains Run ahead of their opening 2015 Rugby World Cup match against Canada at Millennium Stadium on September 18, 2015 in Cardiff, Wales.

Ruaridh Jackson of Scotland is on the wrong side of a high tackle by Sean O'Brien of Ireland during the International match between Ireland and Scotland at the Aviva Stadium on August 15, 2015 in Dublin, Ireland.

Sean O'Brien of Ireland goes over to score the fourth try during the RBS Six Nations match between Scotland and Ireland at Murrayfield on March 21, 2015 in Edinburgh, Scotland.

Sean O'Brien of the British & Irish Lions celebrates with fans after winning the International Test match between the Australian Wallabies and British & Irish Lions at ANZ Stadium on July 6, 2013 in Sydney, Australia.

Sean O'Brien of the Lions scores a try during the International Tour Match between the Melbourne Rebels and the British & Irish Lions at AAMI Park on June 25, 2013 in Melbourne, Australia.

Sean O'Brien of the Lions dives to score a try during the match between Combined Country and the British & Irish Lions at Hunter Stadium on June 11, 2013 in Newcastle, Australia.

Brian O'Driscoll of British & Irish Lions breaks the line during the tour match between the Western Force and the British & Irish Lions at Patersons Stadium on June 5, 2013 in Perth, Australia.