November 16th, 2012 
Matt Loede 
Posted in Defensive end Cliff Avril suffered a concussion against the Vikings, but was medically cleared after Wednesday’s practice.
Lions cornerback Chris Houston and safety Erik Coleman also returned to practice.
Houston had been sidelined since injuring his ankle in the Vikings game and Coleman had been unintentionally poked in the eye and was sporting a visor on his helmet.
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