The Hammers meet the Baggies in the FA Cup fifth round at The Hawthorns on Saturday and Allardyce suggests that Canadian defender Doneil Henry, who joined from Toronto FC via Apollon Limassol in Janaury, could make his bow for the club.
The Upton Park boss also indicated that a pair of veteran midfielders could quite possibly be back in the fray in the West Midlands.
"Yes I think so," he told the club's official website when asked if there would be any changes.
"Doneil Henry who has been with us only a short time is back fit.
"Overall it is still a very light squad."
West Ham progressed to the fifth round of the FA Cup courtesy of a 1-0 win over Bristol City on January 25.
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