Host nation, Brazil began their campaign to win a first ever men’s football gold medal at the Olympic Games on a frustrating note as they were held to a goalless draw by 10-man South Africa in Brasilia on Thursday night.
The London 2012 runner-ups, spearheaded by Barcelona forward Neymar, had the most of the play, but they were unable to find a route to goal against a South African side which played over a third of the match with ten men after Mothobi Mvala was sent off just before the hour.
New Manchester City forward, Gabriel Jesus had the best chance of the match, but he could only hit the post from two yards out.
All four sides in Group A are deadlocked after the first round of matches, following Denmark’s goalless draw with Iraq in the other group game.
Elsewhere, defending champions Mexico were held to a 2-2 draw by Germany in Group C, while Portugal made a winning start in Group D as they beat Argentina 2-0 at the Olympic Stadium in Rio de Janeiro.
The biggest winning margin of the day was recorded by South Korea, who thumped Fiji 8-0- in a match that included a 90-minute spell that yielded 3 goals.