Washington Redskins quarterback Robert Griffin III falls after twisting his knee while reaching for a loose ball during the second half of an NFL wild card playoff football game against the Seattle Seahawks in Landover, Md., Sunday, Jan. 6, 2013. (AP Photo/Matt Slocum)

Photo by: Matt Slocum

Washington Redskins quarterback Robert Griffin III falls after twisting his knee while reaching for a loose ball during the second half of an NFL wild card playoff football game against the Seattle Seahawks in Landover, Md., Sunday, Jan. 6, 2013. (AP Photo/Matt Slocum)