Union Berlin have agreed a deal with Celtic worth up to £10m to sign right-back Josip Juranovic.
The initial fee is understood to be £7.5m plus add-ons and the Croatian has been given permission to travel to Germany to complete the move to the Bundesliga side.
The 27-year-old had been a target for Chelsea this January, while Spanish sides Barcelona and Atletico Madrid had also been looking at a move for him.