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.
An assistant referee signals for offside by raising his flag. Offside is one of the rules of association football, codified in Law 11 of the Laws of the Game. The law states that players in an offside position, when the ball is touched or played by a teammate, may not become actively involved in the play.