Celtic defender Kristoffer Ajer

Kristoffer Ajer “will not like” playing as a makeshift right-back following Jeremie Frimpong’s departure at Celtic.

That is the view of former Rangers and Scotland manager Alex McLeish who, speaking exclusively to Football Insider, suggested the 22-year-old would want to get back to his natural centre-back position as soon as possible.

The Norway international has filled in as a full-back for the Hoops’ past two games against Livingston and Hamilton in the absence of a natural right-sided defender in the squad.

Lennon’s decision came as a result of losing Frimpong to Bayer Leverkusen, with the 20-year-old’s permanent transfer announced on Wednesday evening.

Ajer has been a mainstay in the defence for the Northern Irish boss this season, with 30 appearances under his belt across all competitions already.

McLeish admitted while the Norwegian star may enjoy the novelty of playing in a new role, he would be itching to get back into his preferred position as soon as possible.

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“Ajer’s not going to like playing at right-back,” McLeish told Football Insider.

“He’s a versatile player, is Ajer, he’s pretty mobile, he has got a lopey kind of stride, he recovers well, he’s quick enough and he’s a threat but I’m sure his main position, the one that he would crave for most of his career would be centre-back.

“Anthony Ralston came back from nowhere last week, didn’t he, to fill in, they tried Stephen Welsh for a wee while and I guess it may take time for him to establish himself.

“I was playing for Aberdeen at centre-back, I remember losing form and Sir Alex brought me back and put me back into the team and I absolutely loved it.

“I was flying up and down the wing – people that know me and played with me, they will be saying: ‘Alex, you were never flying up and down the wing’ – and I had a couple of games where I played, I enjoyed it because it was a different position and I felt there was less pressure.

“Then you start to think about things and all of a sudden, you’re thinking this is not really my position and you have to get back to centre-half again.”

In other news, Celtic have missed out on a potential free transfer as contract terms agreed.