Sunday is a big day out on the track at the 2016 Summer Olympics in Rio de Janeiro. There are multiple medal events scheduled for Day 9, but the one that will draw the most attention is the men's 100-meter final, where Jamaica's Usain Bolt will look to make a third gold medal in a row at this event and defend his title as the world's fastest man.
Elsewhere, American Simone Biles will look to build upon her dominant gold medal-winning performances in the individual and team all-arounds with a strong showing in the vault final, while tennis has its big day with gold-medal matches in men's singles, women's doubles and mixed doubles.