Soccer at the 2016 Olympic Games begins on Thursday, with 16 teams vying for the coveted gold medal.
Defending champions Mexico enter as one of the favorites alongside hosts Brazil, who will be under a massive amount of pressure to succeed after the national team's recent shortcomings.
The tournament is an under-23 one for the men, but each team is allowed to have three overage players in its 18-man squad.
Continue reading for a complete guide to the men's soccer tournament at the 2016 Olympics in Rio de Janeiro.