The Cardinals' injured reserve list grew Wednesday by two, when inside linebacker Tanner Vallejo (ribs) and cornerback Kevin Peterson (shoulder) landed there to end their season.
It kick-started a handful of roster moves for the Cards, which promoted outside linebacker Vontarrius Dora from the practice squad and signed two players away from other practice squads: cornerback Andre Chachere from Carolina and linebacker Keishawn Bierria from Jacksonville.
The Cardinals had three open roster spots, after releasing linebacker Terrell Suggs on Friday.
The loss of Peterson means Chris Jones is likely to get the bulk of the work as the No. 2 cornerback opposite Patrick Peterson, with Byron Murphy having moved back into a role as slot cornerback. Chachere is familiar with the defense, having spent time on the Cardinals' practice squad earlier this season.
With the loss of Vallejo, Dennis Gardeck -- who was named as a special teams Pro Bowl alternate -- figures to be the top reserve at inside linebacker behind Jordan Hicks and Joe Walker.
The Cardinals also signed cornerback Duke Thomas and linebacker Jamey Mosley to the practice squad.