This was exactly the kind of scenario Kyle Busch needs to avoid.

Busch slid onto the grass after coming through a turn during NASCAR Sprint Cup practice Saturday in Brooklyn, Mich., damaging his No. 18 Toyota. He returned to the track in a backup car, but he now faces the prospect of having to start from the back Sunday in the 400-mile, 200-lap race at Michigan International Speedway.

"I was just running along, everything was fine and I was actually feeling pretty good about it," he said. "Just started to get a little free up off of [Turn] 4."

Busch has won four times this year, but he is only 30th in points because he missed 11 races after breaking his right leg and left foot in February. He needs to be in the top 30 at the end of the regular season to make the Chase for the Sprint Cup, and right now he's six points ahead of 31st-place Cole Whitt.

• The day wasn't a total loss for Busch. He won the truck series race at MIS shortly after wrecking his Cup car.

Busch passed Ryan Blaney with four laps remaining, coming back after he was penalized on Lap 27 for speeding on pit road.

It was his 44th victory on the series. He has won each of his two truck starts this year.

Smith takes Ohio

Regan Smith bumped his way past Alex Tagliani in the Carousel a turn from the finish to win the NASCAR Xfinity Series race at Mid-Ohio Sports Car Course. Driving for JR Motorsports, Smith raced to his first victory of the year and fifth overall.