Neil Lennon revealed he had a chat with the goalkeeper to "settle" him as there was the possibility of him becoming restless for a move. The 25-year-old is under contract for another three years but is known to have had doubts about whether his international ambitions could be realised if he stayed with Celtic. Forster was included in an England squad for the fifth time by Roy Hodgson this week and there have been calls for him to start ahead of Joe Hart when they play Montenegro and Poland.
"I had a chat with him," said Lennon. "We were aware of interest but there was nothing concrete. We had to settle him down but he is in a good place.
"Can we keep him long term? I don't know. He is happy here but I don't have a crystal ball. We may get an offer we can't refuse. In the summer I told him 'stay'. I told him there was no rush. He has justified his faith in us and we have justified our faith in him by giving him the platform to display his talent all over Europe. If you look at some other players who have left they are maybe looking over their shoulder regretting what they have done.
"I understand Roy's view. . What would it do to Joe Hart if he dropped him? But Fraser's time is going to come. I don't think anyone is going to stop him eventually taking over because he's got the lot really.
"Let's not beat about the bush: if he was playing in the Barclays Premier League would he be playing? Would he have more support? He probably would. So for him to be playing in Scottish football and to be taking on the England number one challenge speaks volumes for where he is at the moment."