The field for Friday's World of Outlaws NOS Energy Drink Sprint Car Series event at Knoxville Raceway goes four-wide to salute the fans watching from home. (Trent Gower Photo)
The field for the Return to Racing event featuring the World of Outlaws NOS Energy Drink Sprint Car Series event at Knoxville Raceway. (Trent Gower Photo)

PHOTOS: World Of Outlaws Knoxville Invitational

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