A hockey match in Greymouth at the weekend erupted in fisticuffs that left one man with a broken tooth and his alleged assailant under arrest.
The violent punch-up occurred at the Westurf Stadium during a regular senior men's match on Saturday between Greymouth and Cobden.
Police said a 38-year-old Blaketown man allegedly punched a 48-year-old Greymouth man four times in the head, breaking a wisdom tooth and causing minor cuts and bruises.
He was arrested and charged with assault, and will appear in Greymouth District Court on July 12.
Sport Canterbury West Coast manager Jack O'Connor said adult sportsmen should be role models.