Bolton pair Zat Knight and Mark Davies return to the squad for the Barclays Premier League match against West Ham at the Reebok Stadium.
Knight has been troubled by a knee injury and Davies an ankle problem. Ricardo Gardner is also in contention after returning from a loan spell at Preston.
Stuart Holden, Sean Davis and Sam Ricketts remain sidelined through injury.
Provisional squad: Jaaskelainen, Robinson, Cahill, Wheater, Knight, Muamba, M Davies, Gardner, Petrov, K Davies, Elmander, Klasnic, Taylor, Alonso, Rodrigo, Cohen, Steinsson, Blake, Lee, Bogdan, Sturridge.
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