West Brom right-back Steven Reid has been ruled out for a month following a knee operation on Friday.
The 30-year-old required surgery "to repair wear and tear" and the operation is not related to the ankle injury sustained by the player against Newcastle on Wednesday.
Baggies boss Roy Hodgson will also assess the fitness of James Morrison and Youssouf Mulumbu ahead of the Boxing Day clash with Manchester City.
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