Drogba is back in training after the rib injury he received against Manchester United but will be out for another week while Ballack (knee) should be back for the Champions League match against Porto on Wednesday.
Lampard (thigh) is expected to be out for three weeks, while Deco is still struggling with a groin strain. Youngsters Fabio Borini, Nemanja Matic and Gael Kakuta are all expected to feature from the bench against Mick McCarthy's men at Stamford Bridge.
Chelsea (from): Cech, Ivanovic, Carvalho, Terry, Alex, A Cole, Essien, J Cole, Anelka, Kalou, Borini, Matic, Kakuta, Hilario, Ferreira, Mikel Obi, Malouda.
