Argentine midfielder who made the UEFA Europa League Final with Benfica two years in a row and was named to the UEFA Europa League Squad of the Season in 2014. He officially became a member of the Argentine national team in 2009.
He joined the Boca Juniors youth system in 2001 at age 13. He debuted with the club's first team in 2008.
For his 9-goal performance in his first year with Benfica, he was named Portuguese League Breakthrough Player of the Year.
His full name is Osvaldo Nicolas Fabian Gaitan. He was born in San Martin, Buenos Aires.
He has played alongside Portuguese midfielder Ruben Amorim at Benfica.