Extra time is an additional period played in some
football codes if the
score is tied at the end of regular time.Extra time is only played if the game is required to have a clear winner, e.g. in a knockout tournament where only one team can advance to the next stage. Professional
association football play an extra 30 minutes, made up of two 15-minute periods. Note, however, that not all competitions employ extra time; for example,
CONMEBOL has historically never used extra time in any of the competitions it directly organizes, such as the
Copa Libertadores (today, it uses extra time only in the final match of a competition).
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