Gallas is out of action for three weeks after damaging a hamstring against Blackburn last Saturday. And France boss Raymond Domenech wants him to join them for treatment on the injury.
Domenech said: "William wants to spend 10 days at our Clairefontaine HQ to have treatment. I hope Arsenal will agree."
Wenger is almost certain to reject the idea and insist his own staff treat Gallas, says the Daily Express.