An intentional foul, usually committed to prevent an opponent scoring, and punishable by a yellow or red card (football) or 10 minutes in the sin bin (rugby)
In football, if a player commits a professional foul, they deliberately do something which is against the rules in order to prevent another player from scoring a goal. in football, if someone commits a professional foul, they deliberately do something that is against the rules in order to prevent another player from scoring