Martín Gastón Demichelis is an Argentine former professional footballer who played usually as a centre-back, although he could also operate as a defensive midfielder. He is the current head coach of Primera División club River Plate.

Club Atlético River Plate, commonly known as River Plate, is an Argentine professional sports club based in the Belgrano neighborhood of Buenos Aires. Founded in 1901, the club is named after the English name for the city's estuary, Río de la Plata. River's home stadium, Estadio Monumental, is the largest in South America.