Rugby football
Play starts when a player from one team kicks the ball from the halfway line towards the opposing team's field goal. Play continues until a try is scored, the ball crosses the side line or dead ball line, or an infringement occurs. The ball can be moved up the field either by carrying or kicking it. The ball can be passed between team members, but it cannot be passed to team members who are closer to the opposing team's goal than the person who is currently carrying the ball.