Defending Olympic champions Mexico have been drawn against Germany, Fiji and South Korea in the Group C of the men's football tournament this summer.
Mexico, who beat Brazil 2-1 in the 2012 final at Wembley Stadium in London to win their first-ever football gold at the Olympics, won the CONCACAF Men's Olympic Qualifying Championship to reach Rio -- along with fellow finalists Honduras.
The draw was made on Thursday at the Maracana stadium in Rio, which hosted the final of the World Cup two years ago and will also stage the gold medal match this year.
The opening match of the tournament will be between Group A rivals Iraq and Denmark in Brasilia on Aug. 4, with hosts Brazil -- in the same group -- kicking off their campaign in the capital city against South Africa later that day.
Men's Olympic groups:
A: BRA, RSA, IRQ, DEN
B: SWE, COL, NGA, JPN
C: FIJ, KOR, MEX, GER
D: HON, ALG, POR, ARG- Paul Carr (@PCarrESPN) April 14, 2016
Brazil have never won gold at the Olympics, despite regularly selecting strong squads to try and win the tournament. In 2012, Thiago Silva, Marcelo, Lucas Moura, Leandro Damiao, Oscar, Neymar, Hulk, Danilo and Alexandre Pato were all part of the lineup which took silver.
Brazil have won silver or bronze at four of the last eight Olympic Games, having never previously won a medal before that.
Group B features Sweden, Colombia, Nigeria and Japan.
Group D sees Argentina take on Honduras, Portugal and Algeria.
The Olympic Games is an under-23 tournament with each nation able to select up to three over-age players. As it is not an official FIFA competition, clubs cannot be compelled to release players for it.
GROUP A
Brazil
South Africa
Iraq
Denmark
GROUP B
Sweden
Colombia
Nigeria
Japan
GROUP C
Fiji
South Korea
Mexico
Germany
GROUP D
Honduras
Argentina
Portugal
Algeria