The NASCAR Sprint Cup Series is at the Texas Motor Speedway this weekend for Saturday night's Samsung Mobile 500. NASCAR goes back under the lights for the first time since an exciting Monday night Daytona 500 in February. The Sprint Cup Series was off last weekend. Ryan Newman won two weeks ago at Martinsville. Greg Biffle leads the points standings by six points over Dale Earnhardt Jr. Defending champion Tony Stewart is 12 points back of Biffle alongside Matt Kenseth, Kevin Harvick and Martin Truex Jr.
