A kick-off is the method of starting and, in some cases, restarting play in a game of association football. The rules concerning the kick-off are part of Law 8 of the Laws of the Game.[1]
A kick-off starts both halves of a match, both halves of extra time and restarts play after a goal has been scored. Free kicks (direct or indirect), penalty kicks, throw-ins, goal kicks and corner kicks are other restarts (see Laws 13–17).