This week, Michael Shelton previews this weekend's NASCAR races at the half-mile Martinsville Speedway that will conclude the Round of 8 in the NASCAR Playoffs and set the stage for the Championship 4. Shelton also speaks to Brad Keselowski as he hopes to put together a strong performance this weekend to stay in the NASCAR Cup title hunt.

You'll also hear from Formula 1 points leader Max Verstappen after his big win at the United States Grand Prix, as well as Dale Earnhardt Jr. and Clint Bowyer after they tested the NextGen Car at Bowman-Gray Stadium