French Open: Biggest upsets of the tournament

Here's a look at the surprise exits and upsets of the French Open 2018 so far.

As defending champion, the Latvian performed way below expectations. The world no.5 Ostapenko suffered a first round exit at the hands of Ukranian Kateryna Kozlova. She went down 5-7, 3-6. She’s the second defending champion in the open era to lose in the first round after Anastasia Myskina in 2005.
A former Roland Garros champion (in 2015), Wawrinka made it to the final of the French Open in 2017, but couldn’t get past the first round this year. He was seeded 23rd in the tournament but crashed out 2-6, 6-3, 6-4, 6-7, 3-6 to Spain’s Guillermo Garcia Lopez. Wawrinka will drop out of the top-250 in the world when the new rankings come out after the tournament.
The world no. 4 entered the tournament on the back of an Italian Open title and was one of the favourites to win the French Open this year. The Ukranian easily advanced through the first two rounds, but in the third round she lost in straight sets (3-6, 5-7) against world no. 33 Mihaela Buzărnescu.
Seeded fourth, Dimitrov breezed past lucky loser Mohamed Safwat in the first round and toiled hard for a second round win against Jared Donaldson in a match that went to the wire. But in his third round tie against 34-year-old Fernando Verdasco, the world no. 5 lost in straight sets (6-7, 2-6, 4-6). He intends to temporarily step away from tennis.
The former World no.1 has been unable to regain her past form in light of a custody battle for her daughter forcing her to miss last year’s US Open and this year’s Australian Open. Her poor form continued into the French Open where she was knocked out in the first round by Kateřina Siniaková 5-7, 5-7.