The 33-year-old revealed he is set to have scans after suffering the knock in France's victory against Bulgaria
France full-back Bacary Sagna is unsure of the extent of his hamstring injury suffered in his team's win over Bulgaria, though he remains hopeful.
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Sagna is expected to return to Manchester on Saturday and be replaced in the squad by Lille's Sebastien Corchia.
The Manchester City full-back, who came off in the 27th minute, hopes he has avoided a serious injury."Before the penalty I accelerated and I think I've torn it a little bit," Sagna said Friday. "I'll have exams tomorrow.
"I do not know if it's serious."
The 33-year-old had given away an early penalty in Paris on Friday, with Mihail Aleksandrov putting Bulgaria ahead.
But a brace from Kevin Gameiro and goals from Antoine Griezmann and Dimitri Payet saw France to a 4-1 win in World Cup qualifying.