Inter are refusing to let Joao Mario join Wolverhampton Wanderers without guarantees they’ll pay the full €35m.
The Portugal international spent last season on loan at West Ham United and seems more suited to the Premier League than Serie A.
Wolves are interested and working with agent Jorge Mendes to broker a deal this summer.
According to Tuttosport, so far they have tried to get the midfielder on a paid loan with an option to buy for €30m.
However, the Nerazzurri need guarantees the transfer will be completed in 2019, so are demanding an obligation to buy rather than just an option.