Juventus faces the risk of a major setback on the eve of the big match against Milan.
The reason lies in the recent loan arrival, with an option to buy, of Randal Kolo Muani from PSG.
According to Gianluca Di Marzio, the French club needs to resolve some domestic bureaucratic issues regarding players loaned out.

Kolo Muani would be the sixth loan player exceeding the limit for the Ligue 1 leaders. To register the transfer of the French international, PSG must first permanently sell one of the players occupying the six slots.
The player has already undergone his medical examinations, and this situation does not threaten to derail the deal. However, if his registration is not completed by the deadline of Friday, January 17, Thiago Motta will have to forgo calling up his new forward for the clash against the Rossoneri.
