Since I couldnlt find anything on this subject up till niw, But, insteadm here you have something else, what they USED in the games, quoted from the same website.

EQUIPMENT DEFINITIONS:

YOKES: A protective yoke or belt in a U shape worn around the hips or waist. It is found made of basalt, either plain or elaborately carved. Forms in leather, cotton or basketry may have actually been worn by players during the game.

HACHAS: Stone ax shaped objects, at times in the shape of a head. Worn attached to the yoke and often found in burials.

PALMAS: Palmleafshaped stone objects associated with the ballgame. Often shown attached to the yokes.

MANOPLAS: Handstones with handles, probably used to hit the ball or protect the hand.

GLOVES: worn by players for protection. Depicted on figurines, pottery and stone carvings.

MAXTLATL: A loincloth worn around the waist of male players.

KNEE PROTECTORS: Padding worn to protect the knee against falls onthe stone courts or blows of the ball.

ARM WRAPPINGS: Wrapped cotton strips worn to protect the arm against falls or blows from the ball.

HELMETS: Headgear worn to protect the head from the heavy ball.

DEFLECTORS: A yokelike protector, part of the costume worn by Maya ballplayers. Extends from just below the armpits to hip level. Probably made of quilted cotton or basketry . Depicted on Maya figurines, pottery and stone.