After fainting on Saturday at an autograph session in Martinsville, VA, Kyle Larson was first evaluated at a local hospital in Martinsville and then evaluated at a Charlotte hospital. Although all tests came back negative and Larson feels completely fine, the doctors felt he should be held for more testing today. Subsequently, Larson will be unable to race today in the STP 500 in Martinsville. Regan Smith has agreed to fill-in for Larson today in the #42 Target Chevrolet.

More From 98.1 KHAK