The Frenchman refused to discuss the size of the bids but did say he would prefer to see the defender move abroad.
When asked if Manchester United were one of the bidders, he said: "I think they could be in the group."
"He could leave, it could happen, I've said that since the start of pre-season," said Wenger, ahead of the club's meeting with Manchester City in the Community Shield on Sunday.
"He needs to play now. He has shown an outstanding attitude but he is in a position where we wouldn't stand in his way if he finds an interesting opportunity.
"Ideally, yes, we would like to sell him abroad and that is an option for us.
"I don't want to say how many offers we have but we have offers from abroad as well."
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