Carter (back) has been ruled out ahead of Sunday's matchup against the Rams, Rich Cimini of ESPN.com reports.

Carter (back) did not participate at practice Wednesday, Zack Rosenblatt of The Athletic reports.

Carter exited Sunday's game against the Jaguars with a back injury.

Carter (back) is active for Sunday's game against the Cardinals.

Carter (back) was a full participant in Friday's practice, but he is listed as questionable for Sunday's game against the Cardinals, Rich Cimini of ESPN.com reports.

Carter (back) was a limited practice participant Thursday, Rich Cimini of ESPN.com reports.

Carter (back) didn't practice Wednesday, Rich Cimini of ESPN.com reports.

Carter (back) was a full participant in Thursday's practice, Rich Cimini of ESPN.com reports.

Carter (back) was a limited participant during Wednesday's walkthrough, Rich Cimini of ESPN.com reports.

Interim head coach Jeff Ulbrich told reporters Friday that Carter (back) won't play in Sunday's matchup against the Steelers, Zack Rosenblatt of The Athletic reports.