AC Milan great Alessandro Nesta can understand Franck Kessie listening to rival offers.

Off contract in June, Kessie's agents are listening to offers from across Europe.

Nesta told La Gazzetta dello Sport: "The rules are wrong, even in this case the whole system needs to be revised.

"Every year the club cannot be taken by the neck by someone, there will always be a super rich offer which arrives. Even for Milan it is difficult to keep the strongest if the proposals are so high, (Gigio) Donnarumma teaches us ...

"I understand that Kessie is tempted: he is not from Milan, he has no specific ties, it is human to want to try to get involved elsewhere."