Defending gold medalist Serena Williams suffered a shocking loss in the third round of the women’s singles tournament at the Rio Olympics on Tuesday, falling to Ukraine’s Elina Svitolina, which eliminated her from the tournament.
The loss shocked the world, especially the Rio Olympics’ favorite fan, Leslie Jones, who took the elimination particularly hard.
“I'm so pissssed. Serena lost,” Jones captioned a sullen selfie. “I feel like if I was watching she would have won. Dammit!”
Williams’ loss knocks her out of medal contention and sends her home empty-handed after she and older sister Venus -- the gold medal winners in 2000, 2008 and 2012 -- also suffered a surprising loss in the doubles competition earlier in the week.
It’s the biggest upset story from the Rio Games so far, but far from the only one. Here’s a look at a few more surprising upsets.
Novak Djokovic
The tennis court has been the setting for big upsets on the men’s side as well, as Novak Djokovic -- who won both the French and Australian Open this year -- lost in the first round of both the men’s singles and doubles tournaments.
After the losses, the 12-time Grand Slam champion and 2008 Olympic bronze medalist announced that he would not be competing for his home country of Serbia in the mixed doubles event, leaving the 2016 Games empty-handed.
Gabby Douglas
Douglas was the women’s gymnastics all-around champ in 2012, but will not have the chance to defend her title in Rio, after she failed to qualify for the finals earlier this week.
The reigning gold medalist actually placed third in the all-around standings, behind teammates Simone Biles and Aly Raisman, but due to a rule that only two gymnasts from each country can compete in the finals, Douglas will have to watch from the sidelines.
"I'm not disappointed at all," she told the Associated Press on Sunday. "I have no regrets."
Douglas will leave Rio with at least one gold medal, however, after the American women won the team competition in commanding fashion on Tuesday.
U.S. Men’s Gymnastics Team
The American men’s gymnastics team were not as heavily-favored as the women coming into this year’s Olympics, but they put up a good show in the team competition, recovering from shaky performances on the floor and pommel horse to start climbing the leaderboard after solid rotations on rings and vault.
Unfortunately, the comeback grinded to a halt when Danell Leyva -- who made the team just two weeks before competition began after John Orozco tore his ACL -- fell off the high bar in the middle of his routine, dashing the American men’s hope for a medal.
U.S. Field Hockey
The United States brought many dominant athletes to Rio, but no one was looking very hard at the women’s field hockey team -- that is until their victory over No. 2-ranked Argentina in the opening round.
The team -- who finished last in London in 2012 and entered the Olympics ranked No. 5 in the world -- followed that up with a win over No. 3-ranked Australia, proving they’re a forced to be reckoned with in the upcoming quarterfinals and medal competition.