I think this might all be baloney, he could be Favre'ing it. Important part will be whether Cowboys put him on reserver/retired list or waive him. Its a better cap deal for them to waive him.

Ian Rapoport‏ @RapSheet 14m14 minutes ago
Tony Romo says he doesn’t “envision” coming back. Then says “it’s about 99 percent” he’s done. And adds “never say never.” So… yeah.