In the semi-finals, third place play-off and final, extra time would be played (two periods of 15 minutes each), where each team was allowed to make a fourth substitution. If still tied after extra time, the match would be decided by a penalty shoot-out.
CONMEBOL set out the following matchups for the quarter-finals:[3]
Match 1: Winners Group A vs 3rd Group B/C
Match 2: Runners-up Group A vs Runners-up Group B
Match 3: Winners Group B vs Runners-up Group C
Match 4: Winners Group C vs 3rd Group A/B
Combinations of matches in the quarter-finals
The specific match-ups involving the third-placed teams depended on which two third-placed teams qualified for the quarter-finals:
Combination according to the two qualified teams
Third-placed teams qualify from groups
1A vs
1C vs
A
B
3B
3A
A
C
3C
3A
B
C
3C
3B
Qualified teams
The top two placed teams from each of the three groups, along with the two best-placed third teams, qualified for the knockout stage.