San Francisco 49ers running back and former USC Gamecock Marcus Lattimore bolts up stairs at Williams-Brice Stadium in this image taken from an Under Armour ad in its "I Will" campaign.
San Francisco 49ers running back and former USC Gamecock Marcus Lattimore bolts up stairs at Williams-Brice Stadium in this image taken from an Under Armour ad in its "I Will" campaign. Under Armour
San Francisco 49ers running back and former USC Gamecock Marcus Lattimore bolts up stairs at Williams-Brice Stadium in this image taken from an Under Armour ad in its "I Will" campaign. Under Armour

College Sports

Video: Marcus Lattimore stars in new Under Armour ad

August 16, 2013 7:52 PM

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