Celtic manager Ronny Deila will have his work cut out this summer to improve his team in the transfer market.
The Norwegian may have already started to think about his options and one of the areas he arguably needs to strengthen will be the middle of the back four.
It could be difficult for the Bhoys to resist a good offer for Virgil van Dijk and with Jason Denayer set to head back to Manchester City, there will be a big hole which Deila needs to fill in his backline.
Van Dijk is a very intimidating defender and someone who carries a real presence alongside his pace and core strength.
Any side looking for a top centre back this summer may consider him and it could be difficult for Deila to get him to ignore the possibilities of what he could achieve with a Premier League or European move.
The Scotsman has reported that the Bhoys are taking a look at Tiago Ilori of Liverpool, which suggests that plans have already started over how to improve the defence this summer.
It should be Deila’s main priority because a strong and consistent defence is what he needs to develop the team and the club over the next few seasons.
If he can compensate for key players leaving and ensure that Celtic regularly keep clean sheets, it takes a great deal of pressure off of the attack.
The full-back positions should take care of themselves because Deila has different options less likely to leave, but getting the two centre backs right for next season is important.
There is still a chance that van Dijk could stay, but the fee the club could get based on the way he has performed this season, will be difficult to turn down.