http://www.nfl.com/news/story/0ap1000000122639/article/robert-griffin-iiis-knee-worries-dr-james-andrewshttp://www.sbnation.com/nfl/2013/1/6/3842136/rg3-injury-redskins-dr-james-andrewshttp://profootballtalk.nbcsports.com/2013/01/06/dr-andrews-says-rg3-was-never-cleared-to-re-enter-game/