Here is the latest transfer news regarding Celtic and Glasgow Rangers.
Rangers boss Mark Warburton wanted to bring the Aberdeen defender to Ibrox in January.
Rangers are reportedly keen to lure defender Andrew Considine to Ibrox.
The Dons have got used to second place in recent years but their status as Celtic's closest challengers is under threat.
Ibrox side Glasgow Rangers are second in the Scottish Premiership.
Brendan Rodgers is aiming to win his first trophy as Celtic manager this weekend.
The Dons have established themselves as title contenders in the Gers' absence.