relegated or have the higher pick in their respective sports draft. These tiebreaking rules may be the same ones used in their respective knockout or playoff tournament, except that the tied team with the worse statistic is the one that is either relegated or receives a higher draft pick. However, in some sports leagues, such as the National Football League, the set of tiebreaking rules to compare the worst-ranked teams is completely different from the rules to determine the playoff teams. Specific sports Association football In association football contests, many matches are allowed to end in a draw, but in cases where a winner must be chosen, there are three methods of deciding this: extra time, penalty shoot-out, and away goals rule with two-legged tie. After regular time or 90 minutes, the usual method is extra time, where each team will play two 15-minute periods of extra time. The team that leads at the end of 30 minutes wins the tie. If, at the end of extra time, after 120 minutes, no winner can be decided, the match goes to a penalty shoot-out. Occasionally, in matches such as the Community Shield in England, the match can go straight to a penalty shootout after 90 minutes' play has been completed. Alternatively, in tournaments such as the English FA Cup, the match is replayed in its entirety, going through the aforementioned stages of extra time and penalties if the second match is drawn. This method is no longer used from the quarter finals onwards. In league matches, when two or more teams are tied on points, a series of tiebreakers are adopted, where goal difference and head-to-head points are the most common ones. While some competitions (including FIFA competitions) use goal difference as the first tiebreaker, some others (including UEFA and AFC competitions) use head-to-head points. American football In the National Football League of professional American football, if both teams are tied at the end of regulation, an overtime period is played under modified "sudden death" rules. Before the 2017 season, this period was 15 minutes in all games. Since 2017, a 15-minute period has been used only in playoff games (in which a winner must be decided); overtime in regular-season games consists of a 10-minute period, no overtime in preseason up to & since . If the team that receives the ball first scores a field goal, then the opponent must