The Nevada Highway Patrol is looking for witnesses to a road rage incident that led to a fight on Interstate 80 in Sparks. The fight happened Tuesday morning on eastbound Interstate 80 near the Pyramid Way off ramp. It involved the driver of a tractor-trailer and the driver of a work truck. One of the men was seriously injured in the brawl. The NHP is looking for someone seen taking a video of the fight, and anyone else who may have witnessed the incident.