Although the golden goal format was used in North American professional association football leagues as early as the 1970s, the term "golden goal" was introduced by FIFA in 1993 along with the rule change because the alternative term, "sudden death", was perceived to have negative connotations. In a knockout competition, following a draw, two fifteen-minute periods of extra time are played. If either team scores a goal during extra time, the game ends immediately and the scoring team becomes the winner. The winning goal is known as the "golden goal". If there have been no goals scored after both periods of extra time, a penalty shoot-out decides the game. The golden goal was not compulsory, and individual competitions using extra time could choose whether to apply it during extra time. The first European Championship played with the rule was in 1996, as was the first MLS Cup that year; the first World Cup played with the rule was in 1998.