#3 Chelsea
Lampard has played a 4-2-3-1 formation in preseason so let's go with that.
Club record signing in goalkeeper Kepa Arrizabalaga will surely start whenever available. Experienced defenders Cesar Azpilicueta, David Luiz and Marcos Alonso will almost certainly keep their place. However the injury to Antoino Rudiger means that Kurt Zouma or Andreas Christensen will be deployed alongside Luiz as his centre-back partner. Zouma was very impressive last season for Everton whereas Christensen struggled for playing time due to his error-prone reputation, so it's fair to say that Frank Lampard will prefer Zouma to start alongside David Luiz.
In midfield, when N'Golo Kante returns from injury, he will be the first name on the team sheet. However, for now, Jorginho and Kovacic will play the role of connecting the defence to attack. Wingers will be Pulisic and Willian, however if one of them are injured then Pedro is a great option to have as a backup. The CAM position is where Englishman Ross Barkley has impressed a lot at in preseason so he should be the first choice for this position.
Finally, Olivier Giroud should be the main striker up front as he tends to play very well when supported by very quick, skilled wingers who are expert crossers- traits that Willian and Pulisic possess without a doubt.