Austin Dillon thinks Kyle Busch tried to wreck him, but Dale Jr. disagrees

Austin Dillon stole a last-lap victory in Saturday's Xfinity race at Fontana, but not without some drama from Kyle Busch.

Dillon thought Busch, who'd led 133 laps and was trying for his fourth straight Xfinity win, tried to wreck him when the No. 18 Toyota got a flat on the last lap, made contact and almost put his No. 2 Chevy into the wall.

"He tried to screw us there at the end. It didn't work out for him, did it?" Dillon said.

But Dale Earnhardt Jr. disagreed.

Dillon backed off later.

"It's just racing," Dillon said. "I probably would have done the same thing. ... He made the move to try to hold off, to win the race. Anybody in their right mind would have made the move. It just made the race more exciting."

The Associated Press contributed to this report.