Albion veteran goalkeeper Dave Beasant will return between the posts against Millwall following the return of Ben Roberts to Charlton.
The 43-year-old has recovered from gastric flu which had kept him sidelined for the wins over Wolves and Bradford.
Zamora, who suffered a knock in Saturday's 1-0 win at Valley Parade, is expected to resume training tomorrow.
Nathan Jones, ruled out of the back-to-back victories against Wolves and Bradford by an ankle injury, could be in contention but Robbie Pethick is still struggling with a back problem.
Young forward Daniel Marney's loan spell with Southend has been stretched to a third and final month.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules hereComments are closed on this article