With the Knoxville Nationals just around the corner, the Knoxville Raceway expects to see a few visitors wonder into the track to get test laps for the Nationals in August. One confirmed visitor will be Christopher Bell, who won the NASCAR Truck Series Mud Summer Classic at Eldora Speedway on Wednesday. He along with other visitors will be racing against the 410 and 360 weekly drivers who are batting for the track championship. You can listen to flag-to-flag coverage on AM 1320 and 95.3 KNIA and streamed live at kniakrls.com at seven.