Hayden was released by the Commanders on Friday.
Hayden signed with the Washington practice squad Saturday, Ben Standig of The Athletic reports.
Hayden (knee) was placed on injured reserve Tuesday.
Coach Doug Marrone said Monday that Hayden (knee) will miss "considerable time," Mike Garafolo of NFL Network reports.
Hayden exited Sunday's game against the Steelers with a knee injury.
Hayden (hamstring) was activated from injured reserve Saturday.
The Jaguars officially designated Hayden (hamstring) to return from injured reserve Thursday, John Reid reports.
Hayden (hamstring) was placed on IR on Wednesday, Adam Caplan of SiriusXM Radio reports.
Coach Doug Marrone said Wednesday that he "doesn't feel good" about Hayden (hamstring) being able to play against the Texans on Sunday, Michael DiRocco of ESPN.com reports.
Hayden was removed from Sunday's game against the Bengals with a hamstring injury.