Celtic fans want Kristoffer Ajer in the first XI against Astana.
Brendan Rodgers’s Celtic won against Simon Grayson’s Sunderland in a pre-season friendly match at the weekend.
Kristoffer Ajer impressed on loan at Kilmarnock last season and continued where he left off with Celtic against Rosenborg.
Scottish Premiership champions Celtic could let Erik Sviatchenko leave for Besiktas.
Celtic could be forced to use Kristoffer Ajer at centre back as Rosenborg.
Erik Sviatchenko fell out of favour under Brendan Rodgers last season and he now has another challenger for his Celtic posiiton.
Celtic boss Brendan Rodgers has changed Kristoffer Ajer's position to centre-back.
Celtic's youngster is relishing the prospect of facing Rosenborg.
Should Brendan Rodgers promote the "outstanding" Celtic talent instead of signing a replacement for Dedryck Boyata?
19-year-old defensive duo Kristoffer Ajer and Jamie McCart will return to Celtic with their reputations enhanced - but who impressed Brendan Rodgers most?
Ajer has barely featured under Bhoys boss Brendan Rodgers and is set to leave Celtic Park in January. Could Leeds United, Queens Park Rangers or Barnsley be the defender's next stop?
Celtic clearly have plenty of exciting teenagers coming through the ranks currently.
The Norwegian teen was looking forward to working with the departing Celtic boss.