One year ago this week, Brian Vickers paced around his Southern California hotel room until he accepted the realization that his racing career was about to be interrupted by yet another blood clot scare. ''I've never been the kind of guy to give up, and by no means was I giving up then, but I certainly didn't think I'd be sitting here (now),'' Vickers said before NASCAR Sprint Cup Series practice. ''Because I was aware of the signs and symptoms, I did catch my blood clot early, and I didn't feel at all that my life was in danger. More...