Man Utd signing Zaha fit for Palace playoff
The England international is expected to shake off an ankle knock in time to pick where he left off in the second half at Selhurst Park, where he gave Brighton right-back Inigo Calderon a torrid time.
"He's such a threat," said manager Holloway.
"He got at Calderon I thought. He put in one cross and Jonny Williams almost got his studs on it and we needed something like that.
"He's got a sore ankle so we're hoping he's okay."