|Date of birth||March 31, 1974|
|Place of birth||San Isidro, Argentina|
|Height||1.87 m (6 ft 2 in)|
|Weight||92 kg (14 st 7 lb)|
|Rugby union career|
Phelan played for Argentine club Club Atlético San Isidro and represented the Argentina national rugby union team on 44 occasions, captaining the team twice. He represented Argentina at the 1999 and 2003 Rugby World Cups. Phelan retired due to injury in 2003 at the age of 29, he has since taken up coaching.
On October 21, 2013, Phelan stepped down from his post as Los Pumas head coach with immediate effect, one year early from the end of his contract. Over the 45 matches that he coached, he earned 13 wins, 31 defeats and 1 draw in his 5-year tenure. Since talking over in 2008, he has rarely earned successes. Argentina failed to get a test series victory under Phelan, with a draw against Scotland in 2008 and England in 2009, before losing 2-0 to Scotland in 2010. In 2012, Argentina again drew a test series against France, then losing 2-0 to England in 2013 including a record 32-3 defeat in the opening test, the biggest losing margin Argentina has had against England on home soil. He did lead Argentina to the occasional "upset", including a 9-6 win over Scotland at Murrayfield Stadium in Edinburgh and a 26-12 win over Wales, who at the time where the Six Nations Grand Slam Champions, at the Millennium Stadium in Cardiff.
He led the Pumas to the 2011 Rugby World Cup knockout stage, but lost to hosts New Zealand in the Quarter Finals. In 2012, Phelan led Argentina into their debut year in The Rugby Championship, and proved hard to beat when home. He led Argentina to a 16-16 draw against South Africa at home in round 2, but failed to improve on that draw, ending bottom of the table with just 4 points and no wins.
In 2013 the pumas had record defeats, starting with the 73-13 defeat to South Africa in the opening round - which was South Africa's biggest winning margin over Argentina. Like in 2012, they came close to beating South Africa at home, but their discipline proved costly with 5 penalties against them, South Africa won 22-17. In Round 4, they came close to beating Australia in Perth after losing the match 14-13, but in the corresponding home fixture, Argentina lost 54-17 to Australia, a record losing margin against Australia at home.
In October 2013, Phelan resigned as Argentina head coach after five and a half years in charge. Under Phelan, Argentina won 13, drew one and lost 31 of the 45 matches. 
- BBC SPORT | Rugby Union | Phelan named new Argentina coach
- Phelan resigns after five years
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- Steyn boots South Africa to victory
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- "Santiago Phelan resigns as Argentina head coach". BBC Sport. 21 October 2013. Retrieved 22 October 2013.
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