Center back who has played for Sporting CP and Manchester United. He became a member of the Argentine national team in 2011.
He debuted professionally for Estudiantes de La Paz in 2008 and played in the FIFA Club World Cup a year later.
He appeared in 17 matches for Spartak Moscow from 2011 to 2012.
He has a daughter named Morena with wife Eugenia Lusardo.
He became teammates with star forward Lionel Messi on the Argentine national team.