NASCAR drivers Kevin Harvick and Kyle Busch most likely assumed some sort of punishment would be dished out upon them, and the gavel fell down today as both were placed on four weeks' probation and fined $25,000 for their pit road confrontation following Saturday night's Sprint Cup race at Darlington Raceway.

Both drivers are on probation in all three of NASCAR's series -- Sprint Cup, Nationwide and Camping World Truck -- until June 15.

The confrontation was a carryover from an on-track incident that happened with five laps remaining when Busch, Harvick and Clint Bowyer were involved in a three-wide accident that wrecked Harvick and Bowyer.

Following Regan Smith's first win of a Cup race, Busch parked behind Harvick on pit road, and the two cars sat there for almost a minute before Harvick climbed out.

Harvick then approached Busch's car and took a swing at Busch. As Harvick swung, Busch drove away, pushing Harvick's car into the inside retaining wall on pit road.

NASCAR stated their biggest concern about the incident was several officials and crewmen were in the area and could have been hit by Harvick's car. Busch acknowledged after the race a mistake was made after both drivers talked with NASCAR.