For the first time since late August, the Knoxville Raceway will be singing the sounds of sprint cars as tonight is the annual practice night in preparation for the season opener on Saturday. Tonight is set aside for drivers to take laps without the pressure of time trialing or heat races to test, tune and make sure everything is working properly. Saturday is the 70th season opening action and KNIA will have live coverage of Live Track Side at 5:00 and Race Nights Live at 7:00.