Frank Gore retires: NFL's No. 3 all-time rusher walks away after signing one-day contract with 49ers
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Frank Gore signs one-day deal with San Francisco 49ers, officially retires as member of team that drafted him - ESPN
From 65th-Overall Pick to 49ers HOF: Frank Gore's Story as a Niner
Frank Gore signs one-day contract to retire with 49ers - Washington Times
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Frank Gore officially retires after 16 seasons in the NFL