COVID concerns have Cup drivers worried ahead of playoffs

Joey Logano (22) goes through the grass toward a tire wall after crashing on a piece of curbing during a NASCAR Series auto race at Indianapolis Motor Speedway, Sunday, Aug. 15, 2021, in Indianapolis. (Randy Crist/The Indianapolis Star via AP)

William Byron (24) and Chase Briscoe (14) drive duringa NASCAR Series auto race at Indianapolis Motor Speedway, Sunday, Aug. 15, 2021, in Indianapolis. (AP Photo/Rob Baker)

Aric Almirola waits by his car before qualifications for the NASCAR Series auto race at Indianapolis Motor Speedway, Sunday, Aug. 15, 2021, in Indianapolis. (AP Photo/Darron Cummings)

Joey Logano (22) waves to fans after crashing during a NASCAR Series auto race at Indianapolis Motor Speedway, Sunday, Aug. 15, 2021, in Indianapolis. (Randy Crist/The Indianapolis Star via AP)

Kyle Larson makes a pit stop during a NASCAR Series auto race at Indianapolis Motor Speedway, Sunday, Aug. 15, 2021, in Indianapolis. (AP Photo/Darron Cummings)