In 1997 shortly before he joined
Leicester Tigers, Murphy gained his first U19 cap for Ireland, playing his club rugby with Naas. He gradually made his way into the
Tigers' first team squad, while gaining caps for Ireland U21. Opportunities at
fullback were limited by the presence of
Tim Stimpson, but he gained a place on the right
wing. Murphy started in both of Leicester's back-to-back
Heineken Cup final wins in 2001 In May 2009, Murphy was named in the
Barbarians squad to play
England and
Australia along with Ireland teammate
Gordon D'Arcy. He took over the Tigers captaincy on the field in the 2008/09 season, when club captain
Martin Corry was not in the team, and led them to two finals that season – Heineken Cup and
English Premiership, the latter of which they won. On 11 September Murphy was picked to start in the first match of the 2011 Rugby World Cup since Rob Kearney was injured. Ireland won the game 22–10 against the United States. He came on then to replace Keith Earls in the Russia game. In May 2012, Murphy announced his retirement from international rugby, and in May 2013, retired from playing all forms of the game after collecting the eighth Premiership title of his career, though he did not play in the Final win over Northampton that season.{{cite news ==Coaching==