Keeper Vasilios Barkas has arrived in Glasgow to complete his £5.5million switch to Celtic.
The Greek international is ready to sign a four-year contract with the Scottish champions after a deal was agreed with AEK Athens.
Barkas is set to have a medical with a transfer close to announcement.
The 26-year-old’s personal package has been deemed acceptable to him and his advisors and, barring any last-minute complications, the Dutch-born star will sign and join Neil Lennon's squad ahead of Sunday’s Premiership opener against Hamilton Accies.
Celtic are understood to have thrashed out a deal with AEK which will see them pay an initial fee of £4.5m with potentially £1m more being paid in add-ons over the term of Barkas’ stay.
Meanwhile, the Hoops remain interested in West Ham striker Albian Ajeti as Lennon looks to bolster his frontline with extra firepower.
The manager has already been boosted by Leigh Griffiths' return to fitness and promise shown by January arrival Patryk Klimala in pre-season.
