Celtic are spending £4.5m on goalkeeper Vasilis Barkas from AEK Athens. He flew into Scotland yesterday.
Neil Lennon has already said that Forster's intention is to win his place back at Saints, so it isn't a surprise Celtic are signing the Greek international keeper.
“We’re disappointed with the Fraser issue. It’s kind of bizarre the way it’s panned out. The impression we got was that he wanted to stay at Southampton and fight for his place, which is the player’s prerogative. But we had been led to believe something else.” - Neil Lennon