The Saints stopper, who has already njoyed two spells at Parkhead, has been linked with a summer return to Celtic on loan, according to The Scottish Sun.
Forster was previously at Celtic Park back in 2019/2020 having joined the south coast outfit from Celtic in 2014, and after falling down the pecking order at Southampton behind Alex McCarthy, could look for a move back up north.
The shot-stopper was in inspired form in his previous spell with Celtic, keeping 17 clean sheets in 39 games, one of which came in the Scottish League Cup Final against Rangers, and Haggerty was full of praise for the goalkeeper, telling FFC: “Celtic won that cup final because of Fraser Forster, he was immense”.
Forster’s Southampton contract runs out at the end of this season (2022) and if he isn’t in the plans of Ralph Hasenhuttl at St Mary’s, he may opt for a move away this summer to get some game time.
Haggerty believes that Forster is well suited to the Hoops and couldn’t believe the goalkeeper didn’t return to Celtic Park, saying: “I think some people suit certain clubs and I think Forster suited Celtic, I couldn’t understand it when he never came back”.