Celtic are close to selling Kristoffer Ajer to Brentford in a £13.5million deal.
The newly-promoted English Premier League club have been in talks over Ajer in recent days, with an agreement now thought to have been reached.
Reports in his native Norway claim the 23-year-old centre-back is set to undergo a medical and that personal terms are also in place.
Ajer went public on his wish to leave Parkhead at the start of last month and had attracted interest from Newcastle United, Norwich City and Bayer Leverkusen.