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Former baseball player Barry Bonds arrives at federal court for sentencing on Friday, Dec. 16, 2011, in San Francisco. Bonds, convicted in April of obstructing a government investigation into steroid use among athletes, faces up to 21 months in prison. (AP Photo/Noah Berger)

Former baseball player Barry Bonds arrives at federal court for sentencing on Friday, Dec. 16, 2011, in San Francisco. Bonds, convicted in April of obstructing a government investigation into steroid use among athletes, faces up to 21 months in prison. (AP Photo/Noah Berger)