16 GOLDS AT STAKE
Men's 200m semi-finals (from tomorrow, 9am), women's 200m final (tomorrow, 9.30am)
After the Usain Bolt show, the Dutchwoman Dafne Schippers, who ran one of the fastest 200m times to win the world title last year, will be challenged by Jamaica's Elaine Thompson, the new 100m Olympic champion who was then a close second to her.
Women's round one (from 6.30pm)
The women's event, unlike the men's, has not been hit by withdrawals. It features a top-class field with Lydia Ko, Ariya Jutanugarn, Stacy Lewis and Park In Bee vying for the coveted gold.
Men's semi-finals: Brazil v Honduras (tomorrow, 12am), Nigeria v Germany (tomorrow,3am)
Hosts Brazil look to have come alive at last after beating Colombia 2-0 in the quarter-finals, and should have little trouble reaching the final. Germany, who can add the Olympic gold to their World Cup trophy, have to overcome 1996 winners Nigeria.