Noel Whelan has ripped into Celtic defender Kristoffer Ajer as he looks to try and engineer a move away from Parkhead this summer.

Speaking exclusively to Football Insider assistant editor Russell Edge, the former Aberdeen hitman insists the centre-back cannot be trusted to give 100 per cent for the Bhoys and that he should be replaced as soon as possible.

As revealed by Football Insider earlier this week, the 22-year-old is one of the players who Neil Lennon was talking about when he blasted the attitude of some of his squad.

The Hoops boss told his wantaway stars to quit the club if they were not committed to the cause and it is understood Ajer is one of those he was addressing via the media.

Whelan insists there is no point keeping the Norway international around if he does not want to play and suggests he will be a disruptive presence both on and off the pitch.

Whelan told Football Insider: “The be-all and end-all of it is he doesn’t want to be there, so what’s the point of managing a player that’s not going to give you 100 per cent? You can’t do that as a manager, you can’t have those sort of players in the changing room.

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“Even as players you understand that you’re going to have to put your body on the line, you’re going to make those challenges, going to have to be aggressive – now what if he’s not going to do that in a game because he still wants a move and doesn’t want to get injured?

“You can’t be having that, you can’t, you’ve got to look for a replacement as quickly as possible but there’s also got to be people out there who want to buy him.”

Ajer featured 49 times for Celtic last season and has a total of 133 appearances under his belt for the Bhoys.

He played the full 90 minutes of the Hoops’ shock Champions League qualifier defeat to Ferencvaros, while he has started two of the club’s three Premiership games this term.

In other Celtic news, a former Scotland star has been left wowed as the Hoops agree terms for a “top-quality” signing.