How Hillary Clinton overcame the challenge from Sen. Bernie Sanders. Hillary Clinton greets supporters during a rally at Long Beach City College on the final day of California campaigning. Photo: Jonathan Alcorn/AFP/Getty Images.
Without the rule, offensive players could hover near their opponents' goal even when the play is on the other side of the field, with the hope of a long pass and an easy goal. The offside rule applies at the moment the ball is touched or passed, not when the ball is received.
The offside rule varies slightly when it comes to scrums, rucks and mauls as the off side line is judged by the position of the foot of the player at the rear of the scrum/ruck/maul. If a player joins the scrum/ruck/maul from in front of that foot then he will be deemed to be offside.