Following the Explore the Pocono Mountains 225 on Saturday afternoon, tensions flared on the racetrack and Chandler Smith got into it with fellow driver Sam Mayer after the race. Mayer had been involved in one obvious wreck that might have incurred the wrath of another driver, wiping out Shane van Gisbergen from behind from P10 with only a few laps to go. But it wasn’t van Gisbergen who was waiting for him on pit road after the race. It was Smith. And he was heated. Mayer wasn’t sure why. “He can’t handle being raced hard, I guess, I don’t know,” Sam Mayer said, according to a video posted on …