DOVER, Del. -- Kevin Harvick and Kyle Busch may have to play nice on the track now that they're on probation.
Off the track?
Well, boys, have at it.
"It's kind of one lie after the other," Harvick said of Busch.
"He'll talk to you to your face like you're best friends, but then behind closed doors... he has the utmost disrespectful thoughts," Busch said of Harvick.
The verbal smackdown that's been ignited between the NASCAR stars since their dustup last weekend at Darlington Raceway has turned Harvick-Busch into the feud of the week.
Harvick and Busch disagree about the incident that forced NASCAR to penalize them. And, they differ on NASCAR's interpretation of "Boys, have at it."
They did agree Friday at Dover International Speedway that they don't like each other.
"I've never gotten along with the guy," Busch said.
Harvick and Busch were fined US$25,000 apiece and put on probation this week by NASCAR for their actions on pit road at Darlington. On Thursday, the drivers were summoned separately to the NASCAR hauler for a meeting with top officials.
NASCAR issued a brief ultimatum about what it means to compete while on probation -- and that Harvick's No. 29 Chevrolet and Busch's No. 18 Toyota shouldn't tangle too closely on the track.
The probation for all NASCAR-sanctioned events runs through June 15, a span that includes four Sprint Cup Series championship races and the non-points $1 million all-star event.
Their already contentious relationship took another blow late in the race at Darlington after Busch made contact with Harvick.
Harvick said officials stressed he was penalized because of the post-race blow up on pit road. Last weekend at Darlington, Harvick climbed from his car and threw a punch into Busch's window just as Busch pulled away, using his car to bump Harvick's car out of the way.
-- The Associated Press