Despite having won just one of its three league home games, Chelsea has been ideal on the road and stays within three points of the Manchester sides at the top of the table.
Stoke boss Mark Hughes will be without three of his main centre-half options and possibly four for Saturday's Premier League clash with Chelsea at the bet365 Stadium.
Pep Guardiola's side continued their impressive form with a 5-0 win against Roy Hodgson's Crystal Palace side on Saturday to improve their goal difference.
He scored 59 goals for Chelsea, but relations with coach Antonio Conte deteriorated last season and he has not played since the end of last season.
"I'm working with my players and very happy to work with these players".
Morata is clearly better, though...
They have an nearly telepathic understanding with one another, with "Dave" as he is popularly known at Chelsea creating both Morata's goals.
But West Ham's Javier Hernandez and Cheikhou Kouyate sandwiched goals around Serge Aurier's dismissal for a second yellow card to make things uneasy for the visitors.
Most of the title talk has been about the two Manchester clubs.
With David Luiz suspended and Gary Cahill on the bench, Chelsea rode their luck at times, and Caesar Azpilicueta's cool head was vital for much of the game.
Conte the Chelsea manager spoke about Morata at the post-match press conference.
Chelsea look to have started off the defence of their Premier League title steadily. Both teams will be looking to progress from Group C, and this game will go a long way towards deciding who will finish on top.
Harry Kane scored twice as 10-man Tottenham withstood a late West Ham comeback to win 3-2.
The likes of Xherdan Shaqiri, Eric Maxim Choupo-Moting, Bojan and Jese are all excellent on their day, however those days are few and far between. Fans come to see us.
"Don't forget his previous experience - he didn't play a lot with Juventus and Real Madrid but now he has a great chance to show that he is a really good striker, a fantastic striker", Conte said.