Deco has been passed fit having missed the second half against Burnley.

Branislav Ivanovic replaces injured Alex in central defence with José Bosingwa returning on the right. Carlo Cudicini is calf-injury victim Petr Cech's replacement.

Nicolas Anelka is preferred to Didier Drogba. Michael Ballack and Ashley Cole are both on the bench. John Terry makes his 250th Premier League appearance.

West Brom make two changes, Ivory Coast international Abdoulaye Miete returning to their defence for the first time since late August. James Morrison comes into midfield.

Chelsea will line-up in a 4-1-4-1 formation as follows:

23 Carlo Cudicini
17 José Bosingwa
2 Branislav Ivanovic
26 John Terry (c)
18 Wayne Bridge
12 John Mikel Obi
21 Salomon Kalou
20 Deco
8 Frank Lampard
15 Florent Malouda
39 Nicolas Anelka

Substitutes: 40 Hilario, 19 Paulo Ferreira, 3 Ashley Cole, 27 Mineiro, 13 Michael Ballack, 16 Scott Sinclair, 11 Didier Drogba
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West Brom are expected to line-up in the following 4-4-2 formation:

Carson; Zuiverloon, Miete, Olsson, Robinson; Koren, Valero, Greening (c), Morrison; Miller, Bednar.

Subs: Kiely, Teixeira, Cech, Donk, Brunt, Moore, Kim.

The referee is Steve Bennett.