Aston Villa manager Remi Garde has assured his players he won't show any favouritism to the Frenchmen in his squad.
"They are not back because they are French or I knew them," Garde said.
"In a fortnight it can be a different team. They did well but the team did well. I think the spirit they are starting to show all together is better than I saw previously.
"I think Charles is an interesting player. He was quite okay in the training sessions and I thought he could be useful for the team. That's it."