Never contact opposing players

Psychically contacting players on the opposing team is illegal. Picks, screens, and other disruptive plays are not allowed in Ultimate Frisbee. Its important for defenders to be disruptive and guard the other team, much as in basketball, but without actually coming into contact.It is up to the defender guarding the player in possession of the Frisbee to count to 10, usually aloud. It is this defenders job to police 10 second infractions.