Martín Gastón Demichelis (Spanish pronunciation: [ma?'tin demi't?elis]; born 20 December 1980) is an Argentine retired professional footballer who played usually as a central defender, although he could also operate as a defensive midfielder.
Demichelis spent most of his professional career with Bayern Munich in Germany (seven and a half years), winning 11 major titles with the team.
He also competed in his home country with River Plate, in Spain with Espanyol and Málaga and in England with Manchester City.
Demichelis earned 51 caps for Argentina, representing the country in two World Cups – finishing second in 2014 – and the 2015 Copa América.