The 49ers on Saturday promoted cornerbacks Marcus Cromartie and Chris Davis from the practice squad to the 53-man roster for Sunday’s game against the Atlanta Falcons.
Kenneth Acker (concussion) and Keith Reaser (ankle) are questionable for Sunday’s game. Typically teams only promote players this late in the week if they expect those players to be active for the game.
To make room for Cromartie and Davis on the 53-man roster, the 49ers placed rookie running back Mike Davis on the injured reserve/designated for return. Defensive back L.J. McCray was placed on season-ending injured reserve.
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Davis underwent surgery on Tuesday to repair a fractured left hand. He is eligible to return to the 49ers’ 53-man roster after six weeks. McCray underwent surgery on Tuesday to repair torn meniscus cartilage in his left knee.
Cromartie was originally signed to the 49ers practice squad in December. He appeared in three games last season with the 49ers. He will wear No. 47 in Sunday’s game.
Chris Davis was signed with the 49ers practice this week. He played 12 games last season with the San Diego Chargers. Davis has been assigned No. 40. Davis originally signed with the Chargers as an undrafted rookie last year from Auburn.
Davis is best-remembered for one of the most memorable plays in college football history. His 109-yard return of a missed field goal at the end of the 2013 Iron Bowl against in-state rival Alabama was the winning margin that helped propel Auburn into the BCS National Championship Game against Florida State.