Daniele Rugani is one of the best prospects in Italy, the fact that Antonio Conte has selected him two times already despite him being only 20 years old. Juventus currently co owns him with Empoli, but due to all the injuries they have on defense, they are interested in bringing him back to Turin in January. But Empoli is in the race to avoid relegation, so they would prefer to resolve co ownership in summer. It would likely take a substantial offer from Juventus to complete the deal in winter transfer window.