After a string of bad results in Europe, Celtic finally got back to winning ways in mid-week, beating Besiktas 3-2 at home. It was the club's first win and points in the Europa League this season. It took them four games to open their account.

This is not only a positive result in Europe, but it could also give them a much-needed confidence booster after what has been a tough few months for the Hoops.

Hopefully, they will use the result against Besiktas as a springboard to more positive performances and results.

Obviously, it is not all good news coming out of the game against Besiktas. It looks like a Celtic player might be dealing with another fitness issue ahead of facing Kilmarnock.

Celtic might have to do without Cameron Carter-Vickers when they take on Kilmarnock this weekend though.

As reported by the Daily Record, the American centre-back was struggling towards the end on Thursday. He is being assessed ahead of the game against Kilmarnock.

Martin O'Neill said regarding the status of Carter-Vickers: "He was complaining about his hamstrings being very tight and half-time and I thought we would give him another 15 minutes.

“Of course, the game changed in that time and we were chasing the game from behind."

Eventually, Carter-Vickers was taken off against Besiktas in the 78th minute. Celtic only conceded once with him on the pitch. And fortunately, they had enough in the tank to get the win even without the experienced American in the heart of the defence.

Carter-Vickers is nowhere at his best right now but it is not surprising considering the number of injuries that the American has dealt with over the past few years.

Perhaps we will never see him at his best again. Or maybe we could, depending on whether he can remain fit for a consistent length of time, which has not been the case for a while.

To be fair, Dane Murray is another centre-back who has done a decent job in recent times. If Carter-Vickers ends up missing the game against Kilmarnock, it is quite likely that the youngster will get the nod. And he has earned it.

Also, perhaps it is best to not put Carter-Vickers into the team, if there is any uncertainty around his fitness.

This is a player who has dealt with numerous injury problems over the past few months. So, there is a real possibility that he could end up making the situation worse if he does end up playing at the weekend. Celtic cannot afford to take that risk right now.