I am calling it now. Gordon cannot continue his full career driving with his back injury. It is to tough to drive with such an injury for a long period. He will soon need to start looking more into his ownership role in motor racing. Having a back problem myself and surgery last year the day after Christmas I feel his pain. I also know the limitations that such an injury can put on you especially while driving at 30 MPH let alone 180-200 MPH while being bumped and banged on in a stock car. 2 years more at most I say and maybe less.