Chelsea boss Antonio Conte doesn't want to lose Juan Cuadrado.
Cuadrado spent last season with Juventus, who are keen to extend his stay.
But Calciomercato.com says Conte is blocking the Colombia international's departure because he wants a new forward signed up first.
Despite Conte's uncertainty about letting Cuadrado leave, Juve are confident of getting their man.
Juve GM Giuseppe Marotta said: "I hope that over the next few days we can conclude the Cuadrado deal.
"For now he is a Chelsea player.
"We presented a proposal to them and are waiting for a response, but we are optimistic."