While giving her post-match speech, Mladenovic broke down in tears as the crowd chanted her nickname, "Kiki!"It's not ideal, but I fight as I can", the 13th-seeded Frenchwoman told the crowd after moving to her first French Open quarter-final".
The American said: "I think she just played really well".
The 23-year-old was booed and barracked by the Suzanne Lenglen crowd following her 6-1, 3-6, 6-3 defeat.
She returned to answer the question and said, "I think she speaks like 25 languages, I heard". "It's all behind me now, so whatever happens in this tournament is not necessarily my concern anymore".
Muguruza briefly left the room after starting to cry when asked about Mladenovic's regular outbursts at key points, but the fourth seed later claimed to be unperturbed by her opponent's behaviour. "But for the rest, you know, my game was I showed today was enough, and I was very happy that I could finish in two sets".
Caroline Wozniacki, with two slam finals now the most experienced player left, continued her fine year with a surprise 6-1 4-6 6-2 victory over 2009 victor Svetlana Kuznetsova. While he will be making his 11th quarter-final appearance, Carreno Busta will be playing in his first Slam quarter-final after needing seven match points to clinch the 4hr 17min match. I don't know how to explain.
Muguruza left the court visibly unhappy with the partisan crowd, and afterwards the tearful Spaniard admitted that they had made it extra hard for her.
Canada's jobs report crushes
The pace of annual wage rate increases accelerated to 1.3 per cent in May, after falling to a record low 0.7 per cent in April. A separate report released Friday by Statistics Canada showed utilization of industrial capacity at the highest since 2007.
Timea Bacsinszky qualified for her third successive French Open quarter-final with a 5-7, 6-2, 6-1 win over 2002 runner-up Venus Williams on Sunday. There is no secret to the French crowd at Roland Garros.
Joining a list that includes Serena Williams, Martina Hingis and Maria Sharapova, the latest to be disturbed by shouty Parisians is last year's French Open champion, Garbine Muguruza. She said: "Everything wasn't flawless".
Defending champion Garbine Muguruza is out of the French Open after losing 6-1, 3-6, 6-3 to home favourite Kristina Mladenovic. Kuznetsova did not help her cause with 41 unforced errors.
Earlier on Court One, Japanese eighth seed Kei Nishikori survived a two-set blackout to beat Chung Hyeon 7-5, 6-4, 6-7 (4-7), 0-6, 6-4 in their rain-delayed third-round tie, winning the first all-Asian battle at this stage of the tournament. "I feel like I played well today, but I didn't quite figure out the solution in time".
The only Top 10 players to right the ship were No. 2 Karolina Pliskova who beat Germany's Carina Witthoeft 7-5, 6-1, and No. 5 Elina Svitolina who defeated Poland's Magda Linette 6-4, 7-5.
All four of the days fourth-round matches pitted one woman who has won at least one major trophy (Muguruza, Venus Williams, Svetlana Kuznetsova and Samantha Stosur) against a woman who has not.