Midfielders: Marco Verratti, Vitinha, Warren Zaire-Emery
The worst section of PSG's formation last weekend was clearly the midfield mostly because it didn't help the team work in any way. Yes, that midfield included top-tier Marco Verratti playing from the start for the first time in ages, but he is reportedly overweight and clearly unfit/underperforming these days. He should keep getting heavy minutes, though.
Vitinha is the preternatural up-and-down type of player at PSG and you never know what he will give you, but being as young as he is it's better for him to go through the growing pains and share the field with a veteran (Verratti) for as much as possible to keep improving his skills and knowledge of the game.
The remaining position (assuming Galtier uses five defenders and two forwards) will be up for grabs and open for as many as four players including Fabian Ruiz, Carlos Soler, Renato Sanches, and Warren Zaire-Emery.
Reports emerging midweek about PSG blocking WZE from attending the Euro U17 with France should point Galtier toward picking him more often than not through May, but we'll see if that's the case of if PSG just retained Warren to keep warm bodies around in the even of more injuries affecting to their players.
Different sports media outlets actually penciled WZE in as the third starter in the midfield on Wednesday in their "early predictions" for the lineup, and I'm doubling down on that as it is what actually makes the most sense.
Renato Sanches should get some minutes at some point in the second half if only to try and show what he has to offer before PSG decide to drop the hammer and sell him after having barely used him following his transfer to the capital last summer.