Celtic have agreed a £4.5 million deal for Swedish international Carl Starfelt - but are now waiting to see when they can get him into the country.
A deal has been thrashed out with Rubin Kazan for the defender - who is seen as a direct replacement for Brentford-bound Kristoffer Ajer.
Starfelt agreed a long-term deal with Celtic and passed his medical in Moscow last week.
The 26-year-old is now waiting for his work visa and to see when he can travel to the United Kingdom, due to the current coronavirus restrictions.
Boss Ange Postecoglou admitted at the weekend that red tape to get deals done has been a major source of frustration with Celtic due to kick off their Champions League campaign against Midtjylland tomorrow night.
The Hoops have already thrashed out a deal to sign Japanese winger Kyogo Furuhashi from Vissel Kobe.
Postecoglou admitted it could take up to two weeks before Celtic can get Furuhashi in the country and out on the training park.
Celtic are looking at right-back options with Rennes pair Sacha Boey and Brandon Soppy, although Udinese and Watford have also been linked with the latter.
The Parkhead side is set to finance some of their spending by selling Ajer to Brentford for £13.5 million.
They have already knocked back offers from Norwich City and Bayer Leverkusen for their Norwegian international.
Celtic have also been linked with a move to re-sign Fraser Forster - although he has been offered a new deal by Southampton.
The former England international would need to take a significant cut - but it would still be more than he would earn at Celtic.
Forster is in the final year of his contract and is one of the top earners at St Mary’s.
The Englishman had been frozen out at Southampton but after his Celtic loan spell forced his way back into Ralph Hasenhuttl’s plans and he shared the gloves with Alex McCarthy last season.
If Celtic were to land him they would need to pay a transfer fee and to offer a long-term contract at the top end of their wage scale.
It remains to be seen if Celtic would make such a commitment with Forster now 33.
