Mark Martin knew he had to save gas to have any chance of winning the Nationwide Series race at Las Vegas Motor Speedway. Even then, he was going to need some help. He got it when leader Brad Keselowski cut a tire on the final lap of Saturday's race, and Martin sailed past him for the victory. It was the fourth win in six Nationwide races at Las Vegas for Martin. "I can't gloat. If Brad hadn't of had a tire problem, he looked like he would win," Martin said. "All I could do is make sure we didn't run out of gas." Read more: http://sports.espn.go.com/rpm/nascar/nationwide/news/story?id=6185136