Tottenham boss Mauricio Pochettino admits the Premier League has left themselves exposed over their transfer deadline switch.
Pochettino is confident of keeping star striker Harry Kane from the clutches of Real Madrid. But he believes other clubs could be left with unhappy players.
“That would be one of the concerns for everyone," said Pochettino. “It is not the way they are going to behave – how they make the offer, or do anything.
“But every single player is going to react in a different way. It is a massive advantage for the rest of Europe.
“We will see how it works, but you have the risk that things will happen and it will be difficult for you to react. I don't believe that it is a good idea to finish the transfer market before Europe does."
He added: "For Southampton, it was a massive problem for Van Dijk.
“I don't say that is a good example, but if some big club is going to try to buy somebody from our club it is how you manage the situation. If this club wants to buy this player and you are not allowing him to go, how will he be on a mental level?
“It is a situation which, for sure, in the next few years we need to fix. We need to have Europe with the same deadline."