Bristol Motor Speedway’s President And General Manager Is Taking A Leave Of Absence To Undergo Tests And Treatment For A Recently-Discovered Medical Matter. Bms Spokeswoman Lori Worley Said The Leave Will Prevent Jeff Byrd From Involvement In The Upcoming Food City 500 Race Weekend. Byrd Recently Went Through A Series Of Tests, And His Doctors Are Encouraged That The Condition Is Limited To One Area And Is Treatable.