The Brazilian duo have muscle strains which will rule them out for the trip to the Hawthorns but should be back in contention against Birmingham on Wednesday.
Bad week: Ramires was sent-off during Chelsea's Champions League exit at Manchester United on Tuesday
David Luiz is set to start after being cup-tied for Tuesday night's Champions League quarter-final second leg defeat at Manchester United.
Team (from): Cech, Bosingwa, Ferreira, Terry, Luiz, Ivanovic, Zhirkov, Cole, Mikel, Essien, Lampard, Benayoun, Kalou, Malouda, Anelka, Torres, Drogba, Turnbull.
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