The Bianconeri's assistant coach has his penalty shortened even further and will be available for their side's crunch match against the Partenopei
The 47-year-old originally faced an eight-month ban but was shortened to six on appeal but now this has been reduced further resulting Alessio being able to be involved in the top of the table clash after the international break.
The Italian's sporting arbitration court, the TNA's, took the decision on Friday, only a week after Juventus coach Antonio Conte has his own 10-month ban reduced to four.
Both their bans were of the result of not reporting alleged match-fixing while at Siena two years ago.
Massimo Carrera, another member of the Juventus backroom staff, continues to oversee the Bianconeri's long unbeaten record and has them top of Serie A currently.