Simon Zebo of Ireland is tackled during the RBS Six Nations match between Ireland and Italy at Aviva Stadium on March 12, 2016 in Dublin, Ireland.

Anthony Watson of England takes the high ball over Simon Zebo of Ireland during the QBE International match between England and Ireland at Twickenham Stadium on September 5, 2015 in London, England.

Anthony Watson of England takes the high ball over Simon Zebo of Ireland during the QBE International match between England and Ireland at Twickenham Stadium on September 5, 2015 in London, England.

George Ford of England is hauled down by Simon Zebo of Ireland and Rory Best of Ireland during the QBE International match between England and Ireland at Twickenham Stadium on September 5, 2015 in London, England.

Simon Zebo of Ireland claims a high ball as Tim Visser of Scotland closes in during the International match between Ireland and Scotland at the Aviva Stadium on August 15, 2015 in Dublin, Ireland.

Wales player Justin Tipuric is tackled by Ireland player Simon Zebo during the Rugby World Cup warm up match between Wales and Ireland at Millennium Stadium on August 8, 2015 in Cardiff, Wales.

Simon Zebo of Ireland and Cian Healy of Ireland celebrate their team's 19-9 victory during the RBS Six Nations match between Ireland and England at the Aviva Stadium on March 1, 2015 in Dublin, Ireland.

Simon Zebo of Ireland scores the first try during the international friendly match between Ireland and Australia at Aviva Stadium on November 22, 2014 in Dublin, Ireland.

Simon Zebo of the Lions celebrates the Lions victory in the International Test match between the Australian Wallabies and British & Irish Lions at ANZ Stadium on July 6, 2013 in Sydney, Australia.