The Daily Mail has reported that Southampton are trying to do a deal to take van Dijk into the English Premier League and Walker feels Celtic have a tendency to sell once a fee gets to a certain point.
“I think Celtic have shown in recent years that they are very likely to do business once the fee gets to around £8-10 million for one player,” he told talkSPORT.
“You’ve got to remember that van Dijk’s got around two years left on his current contract and even if they left it to another transfer window, I think his value would decrease.”
A difficult situation for Deila and Celtic
It’s a difficult situation for Celtic manager Ronny Deila because he’s not under a great deal of pressure to sell the player.
If he stays where he is then he’s guaranteed a place in the side and has the chance to play in the Europa League.
However, the temptation to go and test himself in a higher standard of domestic football is obvious and something that the player will find very difficult to ignore.
Had Celtic managed to stay in the Champions League with a win over Malmo then the situation may have been different but if the Saints have the cash and the player expresses a desire to leave, things could change before the deadline this Tuesday.