Warren didn't practice Thursday due to a back issue, Brooke Pryor of ESPN.com reports.

Warren (knee) has been upgraded from his prior listed questionable status and will not carry an injury designation ahead of Sunday's game against the Raiders, Burt Lauten of Steelers.com reports.

Coach Mike Tomlin relayed Friday that Warren (knee) will be listed as questionable for Sunday's game against the Raiders, Teresa Varley of the Steelers' official site reports.

Warren (knee) remained limited at practice Thursday, Teresa Varley of the Steelers' official reports.

Warren (knee) was a limited participant in practice Wednesday, Teresa Varley of the Steelers' official site reports.

Steelers head coach Mike Tomlin said Tuesday that Warren (knee) is doubtful to be available for Sunday's game against the Raiders, Missi Matthews of the Steelers' official site reports.

Warren (knee) has been ruled out for Sunday's game against the Cowboys, Teresa Varley of the Steelers' official site reports.

Warren (knee) is not expected to suit up for Sunday's game against the Cowboys, Nick Farabaugh of PennLive.com reports.

Warren (knee) missed Thursday's practice, Teresa Varley of the Steelers' official site reports.

Warren (knee) didn't practice Wednesday, Teresa Varley of the Steelers' official site reports.