As reported by Il Corriere dello Sport in today's print edition edition, Pierre Kalulu, Fikayo Tomori, and Malick Thiaw are the future of the AC Milan defence for Stefano Pioli in the three-man defence system.
They are young, swift, and aggressive. Also, head coach Pioli will have more assurances to stick with this formation thanks to the rehabilitation of the former Chelsea center-back. In the contest against AC Monza, the defense performed admirably. The coach is looking ahead after regaining stability and solidity (allowing just one goal in the previous 270 minutes).
AC Milan's last two consecutive clean sheets came at the start of the season against Bologna and Sassuolo at the end of August, when Maignan was the starting goalkeeper for the Rossoneri.