Coca-Cola 600

Jimmie Johnson's run at another Sprint Cup title is on and could lead to NASCAR history.

Sprint Cup points leader Jeff Gordon cut short his practice Saturday because of back spasms and the No. 24 team has Regan Smith on standby should the four-time champion not be able to run the Coca-Cola 600.

Qualifying for NASCAR's longest race of the season is scheduled tonight at the Charlotte Motor Speedway.

Kurt Busch and Andretti (an-DREHT'-ee) Autosport have announced that Busch will try to become the first driver in 10 years to drive in the Indianapolis 500 and the Coca-Cola 600 on the same day.