There are reports of Juve offering Mirko Vucinic in exchange for the Portuguese.
Marotta commented: "Clearly the media is talking about potential new signings, but this team has scored without fail for dozens of games. There is no 'goal problem' and the defence has settled down now too.
"Happy as we are with the players at our disposal, we won't force anyone to stay. Those who do remain must do so with great hunger and fight for a place in the starting XI. Still, nobody so far has expressed the desire to leave.
"I wouldn't talk about January arrivals right now, as the squad is achieving extraordinary things and we have one of the best Coaches in the world. Antonio Conte has been able to make the most of the resources and I wish to underline the Juventus Model."
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