Sometimes impossible to pre-empt a Pep side, but I think Ederson, Gvardiol, Akanji, Dias, Rodri, Foden and Haaland at this stage are definite starters.
Rico or Walker ? Rico has let no one down so far and does give us better control and distribution in possession, adds more of a threat with his intricate touch and passing in the attacking third aswell. Away from home I’d be picking Walker, maybe give Rico the nod in this first big clash of the season.
Gundo, Kovacic, or Bernardo? The three main options alongside Foden and Rodri on midfield. Kova definitely gives us a better shape without the ball and like Gundo, keeps it simple a lot of the time, control. Gundo and Bernardo more attacking picks befitting of a home fixture, all three have tremendous experience in big games, just think Pep will want Bernardo in there somewhere in this fixture. That could be through the middle or down the right.
Doku or Grealish? Does he want Doku’s pace and directness or Grealish’s control. I’d take Jack from the start and use the impact of Doku from the bench.
Savinho or Bernardo? If Bernardo plays centrally Savinho gets the start. He’s been impressive after being thrown into Premier League starts rather than being drip-fed some minutes. Early trust from Pep.