RG3 sustains concussion; Polamalu re-injures calf
Quarterbacks Robert Griffin III and Matt Cassel were knocked out of their games with head injuries Sunday, and Steelers star safety Troy Polamalu limped off the field after aggravating his strained right calf.
Redskins rookie Griffin sustained a "mild concussion," according to coach Mike Shanahan, when he took a shot to the helmet while scrambling to try to avoid a sack during Washington's 24-17 loss to the Atlanta Falcons. Griffin left the game about 10 minutes in to the second half and ...
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