More than half the field, including all four Hendrick Motorsports entries, was involved in a massive wreck at Daytona International Speedway on Saturday night.
Jamie McMurray triggered the 22-car melee on Lap 90, getting sideways, bouncing off Kyle Larson and spinning in front of much of the field. McMurray slammed into the outside wall in Turn 1 and ignited "The Big One."
The crash included Hendrick teammates Dale Earnhardt Jr., Jimmie Johnson, Kasey Kahne and Chase Elliott as well as Kevin Harvick, Danica Patrick, Kyle Larson, Matt Kenseth, Martin Truex Jr. and pole-sitter Greg Biffle.
"I really don't know what happened," McMurray said.
It was typical for NASCAR's superspeedways, but not many crashes involve nearly two dozen cars.
At Talladega in May, 35 cars were involved in at least one accident. Two cars got airborne, and The Associated Press estimated more than $10 million in damage during the race.