Celtic have reportedly had an initial offer for in-demand AEK Athens keeper Vasilios Barkas rejected.
Sportime claim the Premiership champions have lodged a £3.2m bid plus add-ons for the shotstopper who has been capped 10 times by Greece.
Despite financial concerns, the report claims the side who dumped the Hoops out of Champions League are holding out for £6.4m for a player who has also been linked with Premier League new boys Leeds United.
Record Sport revealed AEK held a key transfer meeting earlier this month with Barkas' future top of the agenda for a club who have been battling a range of issues both on and off the park.
Celtic 's hunt for a new No.1 is ongoing after Fraser Forster's decision to turn down a return to Parkhead.
Former Manchester City star Joe Hart, David Marshall, Vaclav Hladky have all been linked with a switch to Parkhead this summer.
Scott Bain has earned the gloves during the club's pre-season tour of France but Neil Lennon has made it clear that he is looking for a new arrival between the sticks.
He said: "I’m spinning a few plates but there’s nothing concrete at the moment.
“There are a couple of positions that we are looking to strengthen.
“Goalkeeper is obviously one of them and we are working on a number of options. We are working on a number of options for other positions too.”