The Man City ace has been hit with a rap over 12 counts of gambling and could face a hefty fine.
Martin Demichelis has been charged with misconduct by the FA over 12 counts of allegedly betting on football.
The Manchester City defender has been given until 5pm on April 5 to respond to the charges, over breaches which are said to have taken place between January 22 and 28.
Demichelis played for Argentina in last night’s World Cup qualifying win over Bolivia, and is due to arrive back in Manchester tomorrow.
The FA says that Demichelis has been charged under rule E8, which forbids players from betting on a wide range of matches.
It is believed the matter is a minor breach and does not relate to Manchester City, but the Blues are not commenting on the matter.
Rule E8 is intended to stop players from placing bets on any matches or competitions worldwide, or on any football matter such as transfers, managers, or on any under-18 games.
The rule also forbids them from betting on any matter on which they have inside information, or from passing such information on to others.