The legendary coach has claimed that Clarence Seedorf's side do not function properly as a unit and has branded Adel Taarabt's efforts on Tuesday as "aimless"
The Italian outfit were eliminated from the Champions League thanks to a 5-1 agrgegate loss in the last 16 to Atletico Madrid, following a 4-1 thumping in Spain on Tuesday.
And the 67-year-old, who led Milan to a pair of European Cup triumphs during his time at San Siro, believes this is a low point in the club's history.
"It's a sad moment for Milan and Italian football," he is quoted as saying by TuttoMercatoWeb.
"Milan are not a team. They do not defend together and that brings out all of their limitations. In attack, they have many individuals, but their game has no logic."
Sacchi was particularly frustrated with the performance of Adel Taarabt, branding the Moroccan's efforts as "aimless" whe compared with the attacking dynamism of Atletico's Diego Costa.
"I was disappointed with [Adel] Taarabt on Tuesday. He wandered around aimlessly. On the other hand, there was Diego Costa, who is very good at moving without the ball."
Costa scored twice for Atletico to add to his solitary strike in the first leg as his side booked their place in the quarter-finals.