Yes the Champions League is their main focus in the pursuit of titles, they have won the Premier League and the FA Cup, now they have to get the title they have always wanted.
They did use their best squad for the FA Cup final match with Manchester United. It is a bit risky for them but eventually they won the final and got a full squad without any injury case. They went through the final match with a perfect ending, win it and don't have any loss on their main squad.
Pep Guardiola has prepared for that and is preparing for the best in this season's Champions League final. They are also certain to lose their full strength in this match. To be honest, I can't wait to see the Champions League final this season, because there will certainly be extraordinary excitement if Manchester City manages to become champions.
Honestly I thought Pep Guardiola will let some of their main players to stay on bench as his preparation for Champions League final. He surprised me by using a strongest squad for FA Cup final match and it seems destiny stands with Pep and Manchester City in this season.
They will play a Champions League final with their best players that surely help them to start the match with maximum strength and confidence. They also have very strong substitutions on bench and those players can make difference in the final match. Substitution players can make Inter Milan surprised when Pep changes tactics and send some new attacking players in.
Foden, Alvarez or Riyad Mahrez are very dangerous substitution players from Manchester City side and they are able to be in main squad of any top club.