Horan celebrating after an Irish victory at the 2003 Rugby World Cup.
|Full name||Marcus Horan|
|Date of birth||7 September 1977|
|Place of birth||Clonlara, County Clare, Ireland|
|Height||1.85 m (6 ft 1 in)|
|Weight||106 kg (234 lb)|
|School||St. Munchin's College|
|University||Limerick Institute of Technology|
|Rugby union career|
Horan made his Munster debut in the 1999–00 season, and was part of the winning team that saw Munster crowned Europeans Champions in 2006. He managed to recover from a calf injury that he picked up in training six weeks prior to the final, and played a role in the Heineken Cup final, where Munster defeated Biarritz 23–19.
Horan also played an integral part in Munster's Heineken Cup victory at the Millennium Stadium, Cardiff on 24 May 2008, when Munster were crowned European Champions for the second time, defeating Toulouse 16–13. He lost his place in the Munster team to Wian du Preez but remained an important part of the team, frequently being sprung from the bench and occasionally starting. A broken hand in October 2010 and an irregular heartbeat meant Horan was out for four months. He made his comeback from injury against Edinburgh Rugby on 18 February 2011, and won back the number 1 jersey, starting against Ospreys and Leinster as Munster secured the 2010–11 Magners League.
He became the seventh Munster player to earn 200 caps for the club in a Pro 12 game against Ospreys on 3 December 2011. Horan agreed terms for a one-year contract extension with Munster in March 2012. On 11 April 2013, Horan announced his intention to retire from professional rugby at the end of the 2012–13 season. His last game for Munster was the Pro 12 fixture against Newport Gwent Dragons on 19 April 2013.
Horan made his international debut against the USA during the 1999–00 season, but did not win another cap until the 2002–03 season, which came against Fiji. He lost his place to Reggie Corrigan during the 2003 Rugby World Cup and the 2004 and 2005 Six Nations Championship, but consistently strong performances for Munster saw him regain his place in the team. He held down his place for the 2006, 2007, 2008 and 2009 Six Nations Championship, starting every match of Ireland's victorious Grand Slam campaign. He was also an integral part of Eddie O'Sullivan's 2007 Rugby World Cup squad. He missed the 2009 November Tests after having heart surgery, and lost his place to Cian Healy, who held on to the loosehead-prop position during the 2010 Six Nations Championship. Horan played against the Barbarians F.C. and New Zealand Maori during Ireland's 2010 Summer Tests, but was ruled out of the 2010 November Tests with a broken hand. He missed the 2011 Six Nations Championship, but was selected in Ireland's training squad for the 2011 Rugby World Cup warm-ups in August 2011. He played against Scotland, but missed out on selection in the final squad for the World Cup.
- "Horan Joins An Elite Group". munsterrugby.ie. 2 December 2011. Retrieved 4 December 2011.
- "Ryan Signs On For Two More Years". munsterrugby.ie. 13 March 2012. Retrieved 14 March 2012.
- "Contract News". munsterrugby.ie. 16 March 2012. Retrieved 16 March 2012.
- "Horan To Call It a Day". munsterrugby.ie. 11 April 2013. Retrieved 11 April 2013.
- "Close Run Affair In Rodney Parade". munsterrugby.ie. 20 April 2013. Retrieved 7 May 2013.