Juventus will be without on-loan defender Armand Traore for four weeks after he injured his thigh.
The stopper, who is on loan from Arsenal, suffered the injury in training on Saturday and will now miss the next month's action.
The Frenchman joined the Italian giants on transfer deadline day on a season-long loan.
The injury meant the talented 20-year-old missed the chance to make his debut in their 3-3 draw with Sampdoria.
His four-week layoff means he will miss the Old Lady's upcoming games against Lech Poznan, Udinese and Palermo.