The club's general director has all but ruled out any high-profile arrivals at the Serie A champions, and he remains optimistic about his side's title chances
The Turin side have been linked with a number of strikers in the past few weeks as they aim to add some more firepower to their squad, but Marotta has stressed that the right opportunity has yet to come along this winter.
"I expect the January window to close without any big signings. The right opportunity has not presented itself to Juventus," the club's general director told Sky Sport Italia.
"We are obviously looking around and evaluating the situation of certain players, but our main objective at the moment is to recuperate injured players and those who will play at the AFCON."
Marotta also took the time to discuss Juventus' title chances following their recent loss against Sampdoria and draw versus Parma, and stressed that it's impossible to win all games.
"There's no reason to be pessimistic. We should remain realistic. Serie A is a bit like the Giro d'Italia. You simply cannot win every stage. It's the final standings that really matter."
Juventus currently hold a three-point lead over second-placed Lazio.