French-born Lemmouchia, who plays for Entente Setif, has flown to France where his sister is ill, France's L'Equipe newspaper reported on Friday. He denied speculation his departure came after a fallout with coach Rabah Saadane.
Persistent reports of clashes between the coach and players ahead of the Nations Cup finals prompted the Algerian federation to issue a statement denying any breakdown in team morale during their pre-tournament training camp in Castellet, France.
Algeria are not able to replace Lemmouchia in their squad.
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