Fans look on from the stands as some are still wearing mask and others are not during a NASCAR Cup Series auto race at Dover International Speedway, Sunday, May 16, 2021, in Dover, Del. (AP Photo/Chris Szagola)

Alex Bowman races during a NASCAR Cup Series auto race at Dover International Speedway, Sunday, May 16, 2021, in Dover, Del. (AP Photo/Chris Szagola)

The trophy for a NASCAR Cup Series auto race is displayed with Martin Truex Jr. on the pole position before the race at Dover International Speedway, Sunday, May 16, 2021, in Dover, Del. (AP Photo/Chris Szagola)

William Byron rounds the track during a NASCAR Cup Series auto race at Dover International Speedway, Sunday, May 16, 2021, in Dover, Del. (AP Photo/Chris Szagola)

Kyle Larson rounds the track during a NASCAR Cup Series auto race at Dover International Speedway, Sunday, May 16, 2021, in Dover, Del. (AP Photo/Chris Szagola)

Kyle Larson, left, leads the pack of Alex Bowman, center left, William Byron, center right, and Chase Elliott, right, during a NASCAR Cup Series auto race at Dover International Speedway, Sunday, May 16, 2021, in Dover, Del. (AP Photo/Chris Szagola)