20 GOLDS AT STAKE
ARTISTIC GYMNASTICS
Men's individual all-around final (tomorrow, 3am)
Japan's Kohei Uchimura has to rebound from a shock fall during qualifying to retain his title.
CYCLING
Men's/Women's individual time trial (from 7.30pm)
Britain's Chris Froome will have one last chance to add an Olympic gold to his Tour de France win last month.
FOOTBALL
Men's group stage: Brazil v Denmark (tomorrow, 9am)
After two 0-0 draws, Brazil's football team are in danger of becoming a laughing stock. They need to beat Denmark to ensure qualification into the quarter-finals.
BASKETBALL
Men's group stage: Australia v USA (tomorrow, 6am)
The star-studded Americans will face the undefeated Australians led by centre Andrew Bogut, who was recently traded from NBA finalists Golden State to Dallas.