A head of Sunday’s game against the San Francisco 49ers, Arizona Cardinals coach Jonathan Gannon has announced CB Garrett Williams and DL L.J. Collier have been added to IR. While it’s unclear what happened to Collier, Williams sustained a knee injury during the team’s clash with the Carolina Panthers on Sunday, colliding with safety Budda Baker.

Kyler Murray addresses the media ahead of the Arizona Cardinals ' game against the San Francisco 49ers in NFL Week 3. Kickoff is scheduled for 1:25 p.m. MST on Sunday, Sept. 21, and will be broadcast on FOX.

The San Francisco 49ers and Arizona Cardinals meet on Sunday for at least a share of the lead in the NFC West, the only division with more than one undefeated team two weeks in.

The Arizona Cardinals opened practice Wednesday for Sunday’s game against the San Francisco 49ers, and they released their first injury report of the week. There were some new names on the list, while other players returned to work.

Rookie cornerback Will Johnson (groin) was a nonparticipant in practice on Wednesday for the Arizona Cardinals ahead of Week 3 matchup with the 49ers.

In the 17-13 season-opening win vs. the Seattle Seahawks, Purdy completed 26 of 35 passes for 277 yards, two touchdowns and two interceptions despite having tight end George Kittle and wide receiver Jauan Jennings exit the game early. He threw the game-winning touchdown to backup tight end Jake Tonges with 1:34 remaining in the fourth quarter.

The NFL announced its conference players of the week on Wednesday. The Arizona Cardinals did not have anyone get honored. However, the Cardinals will face the reigning NFC Defensive Player of the Week. San Francisco 49ers linebacker Fred Warner was named the NFC Defensive Player of the Week for his play in Week 2.

Arizona Cardinals defensive tackle Calais Campbell joins 'The Insiders' for exclusive interview four days before Cardinals-49ers game.