Darrelle Revis admits his body is 'breaking down'

Jets cornerback Darrelle Revis' game is slowing down and America has noticed. Revis himself admits that he has hit that 30-year-old wall, which has expanded from running back to cornerback. At 31 his body is not responding to the rigorous training and games like it used to and he admits to Newsday "My body's breaking down," It's uncommon to hear a player willingly admit the effects of age while still playing. Is playing safety next for Revis?