Juventus coach Massimiliano Allegri will make his return to AC Milan on Saturday, and the reception he receives from his former fans could be as interesting as the match.
Allegri will return to San Siro for the first time in a competitive match since he was fired by AC Milan in January.
Neither team has dropped points this season, and Juventus hasn't conceded a goal in a competitive match since April.
The only other side to have won both its opening matches is Roma, which hosts Cagliari on Sunday.
Here are some things to know about this weekend's matches in the Italian league: