straight to your inboxPep Guardiola was able to rest some of Manchester City's key players against Birmingham, and his second half substitutions could indicate who is in line to start against Brighton on Wednesday.Raheem Sterling, Ilkay Gundogan and Oleks Zinchenko were rested completely, while Joao Cancelo, Ruben Dias, John Stones and Kevin De Bruyne all played 45 minutes in City's straightforward FA Cup win at the weekend.