|Date of birth||June 15, 1978|
|Place of birth||Paraná, Entre Ríos, Argentina|
|Height||1.77 m (5 ft 10 in)|
|Weight||85 kg (13 st 5 lb)|
|Rugby union career|
Gaitán started his career with Club Atlético San Isidro in 1997. He soon earned his debut for the national team, playing against the United States team in 1998. He then spent most of the next four years playing sevens.
In 2002, Gaitán moved to France to play for Biarritz and in 2003 he was selected to be part of the Argentina Rugby World Cup squad. He was selected to play for Argentina at the 2007 tournament, but a scan revealed that he had a blocked artery in his heart, this meant that missed the tournament in order to have surgery. He eventually had to retire from rugby because of this.
He has been the assistant coach for the National senior side under head coach Daniel Hourcade since 2013.