San Francisco 49ers

Pregame: Perrish Cox won’t play, 49ers short on cornerbacks

Perrish Cox and Tramaine Brock are inactive at cornerback, which will give rookie Dontae Johnson his first start at the position. The other healthy cornerbacks are Chris Culliver, Leon McFadden, Marcus Cromartie and Cameron Fuller. Fuller, elevated from the practice squad last week, is wearing No. 40.

Two other defensive starters, linebacker Ahmad Brooks (thumb) and safety Eric Reid (concussion) also will not play. As was the case last week, Dan Skuta will fill in for Brooks on running downs, Aaron Lynch on passing downs. Craig Dahl will start in Reid's spot; L.J. McCray is the only backup safety on the roster.

With Alex Boone on injured reserve, Joe Looney will start at right guard.

New return man Trindon Holliday is wearing No. 19.

49ers inactives:

QB Josh Johnson

WR Stevie Johnson

CB Perrish Cox

CB Tramaine Brock

RB Carlos Hyde

S Eric Reid

LB Ahmad Brooks

Cardinals inactives:

QB Drew Stanton

WR Brittan Golden

S Chris Clemons

LB Larry Foote

G Jonathan Cooper

G Anthony Steen

DE Kareem Martin

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