Sports Photos: NFL Preseason Battle of The Bay August 20, 2011 / 9:34 PM PDT / CBS News Oakland Raiders v San Francisco 49ers Oakland Raiders v San Francisco 49ers Oakland Raiders v San Francisco 49ers Oakland Raiders v San Francisco 49ers Oakland Raiders v San Francisco 49ers Oakland Raiders v San Francisco 49ers Oakland Raiders v San Francisco 49ers Oakland Raiders v San Francisco 49ers Oakland Raiders v San Francisco 49ers Oakland Raiders v San Francisco 49ers Oakland Raiders v San Francisco 49ers Oakland Raiders v San Francisco 49ers Oakland Raiders v San Francisco 49ers Oakland Raiders v San Francisco 49ers Oakland Raiders v San Francisco 49ers Oakland Raiders v San Francisco 49ers Oakland Raiders v San Francisco 49ers Oakland Raiders v San Francisco 49ers Oakland Raiders v San Francisco 49ers Oakland Raiders v San Francisco 49ers Oakland Raiders v San Francisco 49ers Oakland Raiders v San Francisco 49ers 49ers head coach Jim Harbaugh at their exhibition game against the Raiders in August. (Ezra Shaw/Getty Images) Oakland Raiders v San Francisco 49ers Oakland Raiders v San Francisco 49ers Oakland Raiders v San Francisco 49ers Oakland Raiders v San Francisco 49ers Oakland Raiders v San Francisco 49ers Oakland Raiders v San Francisco 49ers Oakland Raiders v San Francisco 49ers (Ezra Shaw/Getty Images)