The owners also came to a consensus on prohibiting players from wearing tights except for medical purposes.

Professional football prohibits players from being draft eligible before they have been out of high school for three years.

League rules prohibit players from wearing pads, so contact work is limited.

The owners wanted to prohibit players from holding joint negotiations.

The rule prohibits players from entering the draft until they have been out of high school for at least three years.

But the policy for minor leaguers prohibits players from using any form of tobacco at ball parks or during team travel.

The league's collective bargaining agreement prohibits players from such betting.

Up to 1999, the Reds had a long-standing rule prohibiting players from having facial hair.

After the season, the league passed a rule prohibiting foreign players from competing during their first year of residence.

Guarantee language is designed to protect a club by prohibiting players from engaging in certain activities that could be hazardous to their health.