Video of the altercation shows what happened on the concourse behind the third-base line seats over the weekend. 

Sources tell KDKA it started when the fan and his friend allegedly

started harassing a woman who worked at a concession stand. The game day

employee intervened, sources said, diverting the two men away from the

concession stand employee. 

Bystanders and other employees try to break up the fight, but within

moments, the fan is seen spitting on the game day employee, at which time the

employee takes off his belt and starts hitting the fan.

Officers with the Pittsburgh Bureau of Police arrived at the scene

following the fight.

On Tuesday, Pittsburgh police provided an update, saying no one involved

has chosen to press charges at this time. So at this point, Pittsburgh police

officers are not involved. 

But there is the potential that could change, as the Pittsburgh Pirates

said they are reviewing PNC Park security camera video, which shows what

happened just before the fight broke out.