The Cardinals placed Demercado (back) on injured reserve Saturday, Theo Mackie of The Arizona Republic reports.

Demercado (back) has been ruled out for Sunday's game against the Patriots, Bo Brack of GoPHNX.com reports.

Demercado (back) didn't practice Thursday, Zach Gershman of the Cardinals' official site reports.

Demercado (back) was a non-participant at Wednesday's practice, Zach Gershman of the Cardinals' official site reports.

Demercado recorded four receptions for 15 yards on four targets while playing eight of the Cardinals' 71 snaps on offense in Sunday's 30-18 loss to the Seahawks.

Demercado (back) is listed as active Sunday at Minnesota, Darren Urban of the Cardinals' official site reports.

Demercado (back) is listed as questionable for Sunday's game against the Vikings, Josh Weinfuss of ESPN.com reports.

Demercado (back) was listed as limited on Thursday's injury report, Darren Urban of the Cardinals' official site reports.

Demercado was limited at Wednesday's practice due to a back injury, Darren Urban of the Cardinals' official site reports.

Demercado (shoulder) doesn't have a designation for Sunday's contest in Seattle, Bo Brack of GoPHNX.com reports.