Brad Keselowski's car took a shot in the pits and then he took aim at Jeff Gordon.
Keselowski, the pole sitter for Monday's race at Pocono Raceway, ran into early trouble when he was called back to the pits because of unapproved body modifications on his No. 2 Ford. One of his pit crew members threw a shoulder block into a side panel, which caused a dent that potentially could give the car more sideforce and an aerodynamic edge on the track.
Crew members argued with pit officials, to no avail. Keselowski rallied to finish third, though his Ford was quickly surrounded by NASCAR officials. The car did not fail postrace inspection.
Keselowski was angered when told that the FS1 broadcast aired footage of his crew doing something similar during a pit stop earlier this year at Las Vegas Motor Speedway. Keselowski was not penalized and won the race.
Gordon, the retired four-time NASCAR champion and an analyst for the FS1 broadcast team, explained on the broadcast how Keselowski might have an edge. As he spoke, the network showed a replay of the Las Vegas pit stop.
"Do you guys remember the last time that this happened and the results? I think it was Las Vegas," Gordon said. "Same penalty. Here it comes ... hip check. Bam."
After the Pocono race, Keselowski was upset that Gordon is broadcasting while he still owns a stake in Hendrick Motorsports.
"They need to get some people in the booth who aren't inbred to the sport and own teams and have internal knowledge, because that's pretty crappy," Keselowski said. "But it is what it is."
Gordon and Keselowski once brawled in pit road following a 2014 race at Texas Motor Speedway over contact on the track.
"It's not that I don't like Jeff Gordon in the booth," Keselowski said. "It's that you need to have people who don't own teams or have commercial interests in the sport, because they say things that are very biased."
Gordon later tweeted an apology.
"My mistake comparing @keselowski @LVMotorSpeedway incident today @poconoraceway but @NASCAR called car down pit road to fix issue not me," he wrote. "My mistake was that @keselowski didn't get a penalty for the 'body modifications' during @LVMotorSpeedway race."