Aug 25, 2013; San Francisco, CA, USA; San Francisco 49ers cornerback Nnamdi Asomugha (24) warms up before the game against the Minnesota Vikings at Candlestick Park. Mandatory Credit: Kelley L Cox-USA TODAY Sports

San Francisco 49ers CB Nnamdi Asomugha has injured collarbone


San Francisco 49ers’ cornerback Nnamdi Asomugha was held back for limited practice on Wednesday, according to multiple 49ers beat writers. The team later identified the reason as a collarbone injury.

The veteran Asomugha has played well for San Francisco in the preseason and was expected to get the No. 3 cornerback slot ahead of Tramaine Brock. Carlos Rogers and Chris Culliver hold down the No. 1 and No. 2 spots, but the No. 3 spot sees a lot of work in nickle and dime packages. Asomuagha signed a one year contract with the 49ers this offseason.

The 49ers open their season on Sunday in San Francisco against the Green Bay Packers.

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