The San Francisco 49ers are preparing for their Week 9 contest against the Arizona Cardinals on Thursday at State Farm Stadium in Glendale, Arizona.

The 49ers did not practice on Monday and held walkthroughs on Tuesday and Wednesday.

There was some concern that running backs Matt Breida and Raheem Mostert might not be available for Thursday's game. Kyle Shanahan said on KNBR Wednesday morning that there is a good chance that both will play.

"I don't think it would be an issue if we were playing Sunday," Shanahan added. "It's just a little bit of an issue because of how quick this game is coming. So when we travel there tonight, really, how they wake up in the morning will be the biggest (indicator). Sometimes there's always a little effect when you travel, just the swelling and things like that.

"If they aren't good enough to go, obviously they won't, but just knowing Breida, knowing Raheem, I have a feeling they'll be alright."

The head coach didn't sound as optimistic about left tackle Joe Staley's chances of returning to face the Cardinals. Staley suffered a fractured fibula during Week 2.

"Staley, I'd say, has the worst [chance of playing]," Shanahan added.

Below are the official injury reports for the 49ers and Cardinals, which were provided by the 49ers Communications staff. Also included are this week's practice participation reports.

San Francisco 49ers


Player Injury Mon Tue Wed Game Status
Matt Breida ankle LP LP LP Questionable
Dee Ford quadricep LP LP LP
Kyle Juszczyk knee DNP DNP DNP Out
Mike McGlinchey knee DNP DNP DNP Out
Raheem Mostert knee LP LP LP Questionable
Justin Skule knee, foot LP LP LP
Joe Staley fibula LP LP LP Doubtful
Levine Toilolo groin LP LP LP Questionable
Ahkello Witherspoon foot DNP DNP DNP Out

Arizona Cardinals


Player Injury Mon Tue Wed Game Status
Zach Allen neck DNP DNP DNP Out
Darrell Daniels ankle DNP DNP DNP
Chase Edmonds hamstring DNP DNP DNP Out
Dennis Gardeck ankle DNP DNP DNP
David Johnson ankle DNP DNP DNP Questionable
Cassius Marsh Sr. concussion DNP DNP DNP
Justin Murray knee DNP DNP DNP Questionable
Haason Reddick knee DNP DNP DNP
Trent Sherfield knee DNP DNP DNP
Charles Clay back LP LP LP

DNP - Did not participate in practice
LP - Limited participation in practice
FP - Full participation
NIR - Not injury related