Brown (groin/knee) has been ruled out for Sunday night's game against the Broncos, Zach Selby of the Commanders' official site reports.
Brown had his 21-day practice window opened this week but will remain on injured reserve at least through Week 13. With Terry McLaurin due back from his quadriceps injury, he'll join Deebo Samuel, Treylon Burks (finger), Jaylin Lane (hip) and Chris Moore as options at wide receiver for Washington versus Denver.