Back to back defeats against Everton and Wolves has dented the Blues confidence ahead of this one and the former England star is certain to make changes.
Hakim Ziyech misses out through injury, but Mateo Kovacic and Billy Gilmour could both potentially return as Lampard looks to stiffen up his midfield unit.
Hammers boss David Moyes has stuck with a consistent line up in recent weeks with his team picking up an eye catching four wins in their last six matches.
The Scottish coach has confirmed he’ll wait on some late fitness checks before naming his side, with Aaron Cresswell and Fabian Balbuena both struggling with knocks.
Ryan Fredericks and Issa Diop are on stand by to step in if needed, but there is positive news on Jarrod Bowen, with the flying winger passed fit to start.
And kick off in this Tier 4 clash is set for 8pm tomorrow night at Stamford Bridge.