Rio Olympic Games

World Rugby says Rio was a big boost for the game

Rugby's return to the Games after a 92-year absence could not have gone better for those promoting the sport as Fiji won their first Olympic medal with exhilarating play while Australia won a women's event widely praised for the quality on show.

Research carried out for World Rugby claimed that in six surveyed markets - France, Japan, the United Kingdom, Australia, Germany and the United States - fan numbers have grown by almost 17 million as a direct result of Olympic inclusion.

Federal investigation opened into alleged Russian doping

The probe is more than a year old, meaning it predates media reports from November 2015 that alleged massive cheating by Russian athletes.