The knockout stage involved the sixteen teams that qualified from the group stage of the tournament. There were four rounds of matches, with each round eliminating half of the teams entering that round. The successive rounds were: round of 16, quarter-finals, semi-finals, and final. There was also a play-off to decide third/fourth place. For each game in the knockout stage, a draw was followed by thirty minutes of extra time (two 15-minute halves); if scores were still level there would be a penalty shoot-out (at least five penalties each, and more if necessary) to determine who progressed to the next round. Scores after extra time are indicated by (aet), and penalty shoot-outs are indicated by (pen.).