Kevin Harvick and Kyle Busch were placed on four weeks' probation and fined $25,000 Tuesday for their pit road confrontation following Saturday night's Sprint Cup race at Darlington Raceway. Harvick tweeted about his penalty and officials from Kevin Harvick Inc. confirmed the punishment Tuesday. Both drivers are on probation in all three of NASCAR's series -- Sprint Cup, Nationwide and Camping World Truck -- until June 15. "We have to maintain a safe environment on pit road," NASCAR spokesman Kerry Tharp said. Read more: http://sports.espn.go.com/rpm/nascar/cup/news/story?id=6520143
