While critics have questioned the entertainment value of Arsenal's system, the former Juventus boss believes the Gunners have found an effective balance between organisation and attacking quality.
"It's very collective football, although PSG does have players who, individually, can decide matches more decisively," he added. "Arsenal needs to be very solid collectively and then capitalise on any set-piece situation. Furthermore, their two center-backs are very strong, and that gives the team a lot of solidity."