Nwosu (ankle) is officially listed as out for Sunday's game versus the Cardinals, John Boyle of the Seahawks' official site reports.
Nwosu sat out Monday's game versus the Bears with an ankle injury, and after missing practice Thursday and Friday, he'll miss his second straight game in Week 9. With Nwosu in street clothes, Derick Hall should start on the edge opposite veteran DeMarcus Lawrence Sunday.