Reports have linked the Serbia international with a move to AC Milan in recent weeks.
Silvano Martina told calciomercato.com: “When a player is with a big club it is difficult to change, and then these rumours come out just a few days after the close of the transfer market. A contradiction, don’t you think?
“There was nothing and I think that there won’t be even in the future.
“It is a useless thing that, just because a player is injured or maybe doesn’t play well, we are talking of a possible sale.”
