There is now no room for error. Just two teams have already qualified for the next round of the Olympic Games men's football tournament, and two others know they will be returning home after Wednesday's last group matches.
That leaves no less than 12 teams in the hunt for the final six quarter-final places and competition will be fierce. With eight decisive games to be played across Brazil in order to determine the qualifiers, here is all you need to know about the conclusion to this first round.
Group A
Denmark vs. Brazil, 2 a.