Sawalich and Day clash

William Sawalich took a swipe at Corey Day, one of 12 drivers battling for the NASCAR O'Reilly Auto Parts Series championship.

Lap 134 collision

Sawalich side-slammed Day on Lap 134, turning Day's No. 17 car left and causing a collision with Justin Allgaier.

NASCAR's decision

NASCAR chose not to penalize Sawalich, making it clear payback is once again on the table in the NASCAR National Series.

Brad Moran explains

Brad Moran, NASCAR Cup Series Managing Director, said the contact was a door-to-door collision that didn't warrant a penalty.

“The way the incident was viewed, is it was a door-to-door contact. They were at it for a lap or so.”

Keselowski's threat

Brad Keselowski declared Carson Hocevar's 'day is coming, and it's coming hard' after Hocevar spun him out at Darlington.

“I'll keep my belts tight.”

Preece's penalty

Ryan Preece was docked 25 championship points after colliding with Ty Gibbs at Texas Motor Speedway.

Preece's outcome

Preece won the final race of the regular season at Daytona International Speedway after being docked 25 championship points.

Keselowski's opportunity

NASCAR's decision to not penalize Sawalich may have given Keselowski the green light to exact revenge on Hocevar.

Bristol race

The NASCAR Cup Series heads to Bristol Motor Speedway for the Bass Pro Shops Night Race this weekend.

What happens next

Will Brad Keselowski take the opportunity to settle his score with Carson Hocevar at Bristol Motor Speedway?