A surprise inclusion in the team's is 24-year-old Andy Irving who makes his full debut for West Ham.
Irving was set to leave West Ham at the start of the month but under Graham Potter has worked himself into a credible spot making eight appearances this season.
As for further good news for the Hammers, captain Jarrod Bowen makes his return to the starting lineup after a foot injury that has kept him out of action for the last month.
It's became the point of discourse around Chelsea in recent weeks.
The Spanish goalkeeper was developed under Graham Potter but brought to Chelsea after his tenure.
So far has had his moments, but has been a real culprit in the defensive woes of Enzo Maresca’s side, including the hiccup against Manchester City and that has lead to his dropping.
No player has made more errors leading to goals than Sanchez (5).
Have you had a good transfer deadline day? If not, the sight of Chelsea might or might not help.
The Blues are back at Stamford Bridge and face the horror-filled task of welcoming back former manager Graham Potter and his West Ham team.
Potter has already found himself busy early in the day - as him and striker Evan Ferguson were reunited.
Ferguson joins on loan from Brighton for the rest of the season, but will not play today due to being unregistered.
As for Chelsea’s window, where to start? João Félix is set to leave after six months, joining AC Milan. Ben Chilwell is also on the way out - Crystal Palace is his destination. Incomings are limited but they've managed to squeeze Mathis Amougou from St-Etienne.
