5 memorable photos from Day 8 of Rio 2016
Jamaican track superstar Usain Bolt checks his rearview mirror while breezing into the 100m semifinals with a first-place finish in his preliminary heat.
Juan Martin del Potro soaks in his epic semifinal victory over Rafael Nadal, setting up a gold-medal match against Andy Murray.
Long-distance runner Mo Farah reacts in disbelief as he crosses the finish line to defend his gold medal in the 10,000m event.
Related - Watch: Farah collides with training partner before winning 10,000m gold
Jamaican sprinter Elaine Thompson prays in celebration after dethroning countrywoman Shelly-Ann Fraser-Pryce to win gold in the 100m final.
Fencer Ibtihaj Muhammad, the first-ever American Olympian to compete while wearing a hijab, celebrates after helping the United States claim bronze in team sabre.
All photos courtesy Action Images