Complex sentence: Martín Gastón Demichelis (born 20 December 1980) is an Argentine professional footballer who plays for English club Manchester City and the Argentina national team usually as a central defender, although he can also operate as a defensive midfielder.
Split into simpler sentences: Martín Gastón Demichelis (born 20 December 1980) is an Argentine professional footballer who plays for English club Manchester City and the Argentina national team. He usually plays as a central defender, although he can operate occasionally as a defensive midfielder.