Reports suggest Aberdeen boss Derek McInnes went into the Rangers changing room on Wednesday night.
Steven Gerrard's Rangers beat Scottish Premiership rivals 4-2 at Pittodrie on Wednesday thanks to two goals from Alfredo Morelos.
Glasgow Rangers striker Alfredo Morelos endured a mixed evening as the Ibrox side picked up an important win.
Celtic duo Lewis Morgan and Jonny Hayes could be on the move this week.
Brendan Rodgers’s Celtic, Wolverhampton Wanderers and Aston Villa are reportedly interested in Aberdeen defender Scott McKenna.
Steven Gerrard’s Ibrox club Glasgow Rangers are level on points with Brendan Rodgers’s Celtic.
The Aberdeen manager is said to be in the frame for Gary Rowett's old job at Stoke City.
Max Lowe looks set to return to Derby County in January.
Aberdeen were too good for Rangers at Ibrox last night.
Celtic ace Ryan Christie was on loan at Aberdeen for 18 months.
Derek McInnes has turned down the opportunity to take charge of Sunderland and will instead remain as Aberdeen manager, the Scottish club have announced.
The Aberdeen boss is among the leading contenders to replace Mark Warburton, sacked as Rangers boss on Friday, at Ibrox.
Sunday’s match marked the first meeting between the two sides since January 2012.