Allegri led Juve to five Serie A titles, five Italian Cups and two Italian Super Cups.
The 24-year-old is looking to give his club career a jump start at Milan after being sold by Chelsea and he was key to Stefano Pioli's side claiming the points in their opening match of the season
AS Roma said on Monday they have sacked chief executive Pietro Berardi, a decision taken days after prosecutors seized documents at the Serie A club as part of a probe into possible financial irregularities in transfer deals.
Serie A title fever is sweeping Naples as the football-mad city hopes that rampant Napoli will end more than three decades of waiting to be crowned kings of Italy.
Inter Milan made it two from two in Serie A with Saturday's comfortable 3-0 win over Spezia on Romelu Lukaku's return to the San Siro.
Angel Di Maria landed in Turin on Thursday night ahead of his move to Juventus after being released by Paris Saint-Germain at the end of last season.
But the most emotional scenes came during Fiorentina's 3-1 defeat at Atalanta, who kept their hopes of Champions League football alive thanks to goals from Josip Ilicic, Alejandro Gomez and Robin Gosens.
Paulo Dybala strikes twice to send Juventus to the top of Serie A with a 2-0 victory over Udinese as title rivals Napoli are held to a goalless draw at Inter Milan.
Napoli pull four points clear at the top of Serie A with a 5-0 hammering of Cagliari a day after champions Juventus' game in Turin was snowed off.
Marek Hamsik equals Diego Maradona's record as Napoli's all-time top goalscorer as they took advantage of Inter Milan's first defeat of the season to move top of Serie A with a 3-1 win at Torino.
Juventus, beaten Champions League finalists twice in the past three seasons, begin the 2017-2018 season looking to extend their current record of six consecutive title wins in Italy's Serie A.
AC Milan signs Argentine midfielder Lucas Biglia on a three-year deal from Serie A rivals Lazio for an undisclosed fee.
Inter Milan have sacked manager Stefano Pioli after a run of seven league games without a win, the club said in a statement on Tuesday. It was Inter's second managerial change of another disappointing season, with the club seventh in Serie A.
Ghana's Sulley Muntari dramatically walked off the pitch while playing for Pescara at Cagliari yesterday, after his complaints of alleged racist abuse were met with a yellow card.
AS Roma's Mohamed Salah scored twice in a 4-1 win at Pescara on Monday which kept alive their faint hopes of catching Serie A leaders Juventus and condemned their opponents to relegation.
Premier League target Leonardo Bonucci scored an impressive goal as Juventus moved 11 points clear at the top of Serie A with a comprehensive 4-0 win over Genoa on Sunday.
AS Roma maintained their dogged pursuit of Serie A leaders Juventus with a 3-0 win at Bologna on Sunday while Inter Milan's European hopes suffered a setback as they slumped to a 2-1 defeat at lowly Crotone.
Han Kwang Song became the first North Korean player to score in Italy's Serie A when the 18-year-old netted for Cagliari on Sunday.
A brace from Gonzalo Higuain gave Juventus a 2-0 win at home to Chievo on Saturday and moved them closer to a sixth consecutive Serie A title as they forged nine points clear of their closest pursuers.