It sounds like they had uniforms. https://en.m.wikipedia.org/wiki/Maya_Ballgame https://en.m.wikipedia.org/wiki/Maya_Ballgame > The usual dress for players is

It sounds like they had uniforms. https://en.m.wikipedia.org/wiki/Maya_Ballgame https://en.m.wikipedia.org/wiki/Maya_Ballgame > The usual dress for players is known from iconographic and figural findings. These show leather protection mainly at the hips and the chest, but sometimes also at the knees and the arms, though very seldom at the feet. The clothing was used to protect against the impact of the ball. The protected parts of the body were used to strike the ball. Some players would wear head dresses (like deer heads) for ritual reasons.