Two Richard Childress Racing crew members have been penalised for their roles in a clash between the team's NASCAR Truck Series personnel and its Sprint Cup driver Kevin Harvick at Martinsville last weekend.
Harvick was driving for NTS Motorsports in the Truck event when he tangled with RCR's Ty Dillon, a protege of the organisation and grandson of team boss Childress.
The two drivers then collided again during the resultant caution period, before Harvick parked in Dillon's pit stall, where RCR team members expressed their displeasure.
Crewman Adam Brown has been suspended from NASCAR events for throwing a hammer at Harvick's truck during the remonstrations, while crew chief Paul Richmond has been fined $10,000 as the actions of team members are his responsibility under series rules.
In interviews immediately after the incident, Harvick claimed that the presence of "punk-ass kids" like Dillon and his brother Austin had triggered his decision to leave RCR for Stewart-Haas next year.
He subsequently apologised for those comments.