In the first leg of UEFA Champions League Quarterfinals, Milan beaten Napoli comfortably at San Siro.
Bennacer scored the goal for Milan after beautiful play by Diaz.
Zambo Anguissa showed the red and Napoli were reduced to 10-men.
Pioli brought back a large number of regulars in Milan for today's crucial match after fielding a significantly altered lineup for last Friday's 0-0 draw with Empoli.
Leao and Giroud started up front with Diaz, and Kjaer started at the back. Kalulu had recently made a full recovery and was back on the bench.