The key will be the defence. The forwards/midfielders are pretty much set. I wouldnt expect too many changes. Keeper should be Martinez but I dont think he starts.
Keepers:
Armani
Martinez
Andrada
Defence:
L.Martinez
Senesi
Romero
Foyth
Montiel
Lucas. Martinez
Tagliafico
Midfielders:
Palacios
Lo Celso
Paredes
RDP
Ocampos
Gonzalez
Rodriguez
Attackers
Correa
Dybala
Kun
Messi
ADM
Lautaro
Rodriguez as the 7th midfielder just because I dont see how anyone else gets the nod. I dont think he's any better than Ascacibar but he will never get called up having barely played the past 18 months. Im going against my beliefs in bringing the older guys like ADM but you cant over look what he has done this season. Is it a mistake maybe but he's earned it based off his play this season. Who knows maybe if he's not asked to be a starter, he could finally stay healthy for a f***ing tournament. I wouldnt start him though. Mind you all this is for not because Otamendi will get called up im just hoping Scaloni doesn't start him. Even that might be wishful thinking.
This looks about right to me. My only change would be Papu for Rodriguez. After his season in Atalanta last year, I find it hard to leave him off the lineup. Both Dominguez and Ascacibar are also good options there.
As for goaltending, I wish Benitez was on the radar, I think he's had a nice season for Nice. Emi Martinez should be the starter.
I really hope he doesn't take Otamendi or Pezzella, but knowing Scaloni we likely see both.