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Joey Logano then spun and collected Kenseth, leaving his car banged-up and smoldering. Kenseth was OK — but his points lead was gone.

“Everybody was just running everybody in the back, and you could see it was just a matter of time before the wreck happened,” Kenseth said.

Johnson got a flawless restart when the race went back to green with 20 laps to go, then pulled away from Busch in the closing laps of the race.

Keselowski was going for a weekend sweep after winning the Nationwide Series race at Indianapolis on Saturday. And for a while, it looked like he might pull it off.

Keselowski and the No. 2 team experimented with a different pit stop strategy than the rest of the leaders, attempting to set up the possibility of stretching their fuel mileage at the end of the race. But he got loose after a restart on Lap 101 and dropped to seventh.