Nice are expected to line up in their usual 4-3-3, with Witsel sitting at the base of the midfield and Coulibaly and Hein ahead of him. The idea is control through the middle and quick access to Wahi and Amoura in the channels. But control requires confidence, and right now Nice's midfield looks like a group waiting for something bad to happen. Clauss and Nkounkou will push high from full-back, which is exactly the kind of invitation Lille's front four will accept. If Nice lose the ball in the half-spaces, Lille can knife through the lines in two passes.

Lille are likely to set up in their 4-2-3-1, with Mukau and Bentaleb as the double pivot, Haraldsson in the ten role, and Bakwa and Onal flanking Ueda. That is a shape built to press, win second balls and attack quickly. Bentaleb's left foot can switch play; Haraldsson's late runs into the box are a nightmare for a back line that is already jumpy. The wide battle is where this game tilts: Bakwa and Onal against Clauss and Nkounkou is a mismatch in transition. Nice's full-backs will be pinned back, which blunts their own attacking width and leaves Wahi isolated.

Set-pieces are another Lille edge. With Alexsandro and Ngoy attacking corners and Bentaleb's delivery, Nice's zonal marking will be tested. The expected game state is Lille with the ball, Nice chasing shadows and trying to spring counters through Amoura's pace. If Nice score first, the stadium lifts and this becomes a dogfight. If Lille score first, the home crowd will turn, and that is when the crisis of confidence becomes a collapse.