It has been reported that Celtic manager Neil Lennon will make an enquiry regarding the 31-year-old England international goalkeeper.
The 27-year-old Scotland international has reportedly picked up a hand injury and could be on the sidelines for two months.
Good signing for Celtic?
Forster is out of favour at Southampton, and the 31-year-old will be a good signing for Celtic in the summer transfer window.
The custodian was a success at Celtic during his time at the Hoops, having played for the Glasgow giants on loan from Newcastle United in 2010-11 and 2011-12 and then signed a permanent contract in 2012.
Forster, who played under Neil Lennon at Celtic, joined Southampton from the Hoops in 2014 for a transfer fee reported by The Scottish Sun to be worth £10 million.
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