In 2010 he represented Ireland in the Alitalia European Cup. Also he followed up his 2009 Championship 1 Player of the Year award with a Championship player of the year award in 2010 for Featherstone Rovers in his first season back with the Rovers.
He is Ireland's joint most capped player alongside Bob Beswick and is also Ireland's record point scorer.
In November 2014, Liam was called up to play for Ireland in their final European Cup game against Wales. He was a huge influence scoring a total of 18 points in their sides massive 42-14 victory. However, his performance wasn't good enough as Ireland needed to win by 41 points if they were to secure the European Cup title, a place in the 2016 Four Nations and 2017 Rugby League World Cup.