WATCH: Top moments from Day 8 at Rio Olympics


Day 8 in saw Michael Phelps earn his 23rd gold medal in what he says was his last race. It saw Jamaican Elaine Thompson unseat countrywoman Shelly-Ann Fraser-Pryce as world's fastest woman. It saw longshot Monica Puig win the women's tennis singles championship -- and Puerto Rico's first-ever gold. It saw Neymar score his first goal in Rio. It saw Mo Farah defend his 10,000m title, cementing his place as an all-time great. And it saw a steeplechaser run more than half a mile without a shoe.

Sound fun? It certainly was! Relive the day by watching all the top highlights below.

Phelps and friends set Olympic record in 4x100m medley relay

Elaine Thompson takes 100m dash; Shelly-Ann Fraser-Pryce third

Monica Puig upsets Angelique Kerber in women's singles final

Mo Farah overcomes tumble to win back-to-back 10,000m titles

Simone Manuel anchors women's 4x100m medley relay gold

Neymar notches first goal of Rio Olympics

U.S. rowers take 11th straight women's coxed eight in Olympic/world competitions

American Jeff Henderson narrowly wins long jump

South Africa's Jaco Van Zyl makes second ace in Olympic golf tourney

Steeplechaser runs half a mile after losing show

Team USA, Team GB break cycling record in same race