Car owner Rick Hendrick said injured star Dale Earnhardt Jr. "looks great," but the organization will wait until the driver is 100 percent before he returns to the track.

Hendrick said Saturday that Earnhardt is scheduled for a medical check next week and that will help determine if he'll drive at Michigan next week. Earnhardt has missed the past four races and won't be driving at Bristol Motor Speedway on Saturday night.

Jeff Gordon has run the previous three races and will compete at Bristol. However, Gordon is unavailable to drive next week and if Earnhardt can't go, Alex Bowman will return to the No. 88. Bowman subbed for Earnhardt in New Hampshire last month.

Earnhardt was diagnosed with a concussion from a hard crash Michigan and two wrecks at Daytona.