San Francisco 49ers head coach Mike Singletary smiles during the first half of a preseason NFL football game against the Oakland Raiders in Oakland, Calif., Saturday, Aug. 28, 2010. (AP Photo/Paul Sakuma)
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San Francisco 49ers head coach Mike Singletary smiles during the first half of a preseason NFL football game against the Oakland Raiders in Oakland, Calif., Saturday, Aug. 28, 2010. (AP Photo/Paul Sakuma)
