De Haas suffered a right ankle sprain in Saturday's scoreless draw against Celta and will be out for at least a week, according to Tribuna VCF.
Analysis:De Haas took a knock in the first half and couldn't continue after the break, having started in Valencia's season opene. He'll undergo further medical tests to determine the exact grade of the sprain and confirm a firmer timeline. De Haas is ruled out for Tuesday's rescheduled match against Real Betis, with Cesar Tarrega and Mouctar Diakhaby set to be the alternatives at center back. His availability for the trip to Deportivo on August 30 will depend on how the injury progresses.
