Ajer has been out of Celtic action for three weeks with a hamstring injury.

Kristoffer Ajer has been teased by Celtic teammate Nir Bitton on Instagram after the Norwegian colossus posted an upbeat Instagram update on his hamstring injury.
Ajer, 20, suffered the problem against St. Johnstone in the Scottish League Cup quarter final, in which the Hoops earned a narrow 1-0 win in Perth to progress into the semi-final where they face Hearts.
He has since been sidelined for three weeks, missing four Scottish Premiership outings, as well as the 3-1 Europa League loss to RedBull Salzburg at the start of the month.
Though he is expected to be unavailable for the next couple of weeks, with an estimated return date believed to be in the middle of November, Ajer was upbeat on Instagram and told fans he is looking forward to getting back on the pitch.
Ajer’s post went down well with fans, but teammate Bitton chose to tease the Norway international by reiterating that he has only been sidelined for three weeks – while the Israeli midfielder last played in February.
The 26-year-old has undergone surgery on a long-term knee injury and is expected to return towards the end of the year, but he mocked Ajer for posting on Instagram despite only being out of action for three weeks – compared to Bitton’s eight months.
Celtic are in action on Thursday night as they look to reignite their Europa League campaign following the loss to Salzburg, by beating RedBull Leipzig in Germany.

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