Extra time occurs in knockout matches when the 90 minutes of regulation play fail to produce a winner.
Football’s “overtime” is a 30-minute period of extra play, divided into two 15-minute halves, which can also include stoppage-time add-ons at the end of each half.
At the midway point of extra time, the teams swap sides just as they would between the halves of a 90-minute match. They are also granted an extra substitution for this half-hour period, meaning six changes can be made across the eventual 120-minute match.
If the scores are still level after extra time, the match goes to penalties, where five players from each side alternate taking an initial five spot kicks per team.
If the match is still tied after that, the shootout becomes “sudden death” — the first team to score with a penalty when their opponent does not wins the game and progresses.



