Nicole Denise Shields is charged with assault on a government official.
According to a Wake County representative, East Millbrook Coach Chris Kwolek took her son out of the game between Millbrook Middle School Monday night.
Shields allegedly yelled at Coach Kwolek, came from the stands and then hit him on the back of his head.
An assistant principal and an off-duty Wake County deputy sheriff witnessed the incident. The deputy then pursued charges against Shields.
She turned herself in to authorities on Tuesday but was released on bail. Authorites have ordered her to not have contact with the coach.