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.
These sources of possession are the scrum, ruck and maul, in which an offside line exists through the hindmost foot of players in the formation. Players who are not involved in the contest for possession are offside, if they are in front of this line before the ball leaves the formation. The same applies to lineouts. However, from lineouts the line is lo metres from the centre line down of the lineout.