French Open Wednesday saw a major upset as world No. 1 Aryna Sabalenka crashed against Diana Schneider in dramatic fashion. Despite being in complete control for most of the match, Sabalenka lost a set lead and a double break advantage before losing 3-6, 7-5, 6-0.The four-time Grand Slam champion looked set for a place in the semi-finals when she raced to a 4-1 lead in the second set and later served for the match at 5-4. However, Schneider, playing in her first Grand Slam quarterfinal, made a brilliant comeback and completely dominated the deciding set.As the match slipped away, Sabalenka’s frustration became evident. In the third set, she screamed loudly after losing a point that left her trailing 0–30 in the game. Although she managed to save two match points, the Belarusian eventually bowed after hitting a shot at the net.The defeat was reminiscent of last year’s French Open final, where Sabalenka struggled under pressure before losing to Koko Goff.For Schneider, the victory is the biggest of his career and a memorable place in the semifinals at Roland Garros.Earlier in the day, unseeded Polish player Maja Cholenska continued her dreams of reaching the semi-finals by defeating 22nd seed Anna Kalinskaya 7-6 (3), 6-3.Chwalinska, who went through three qualifying rounds just to enter the main draw, became the second Polish woman to reach the semifinals of the French Open after Iga Swiatek.The 24-year-old struggled to believe his achievement after the win.“I honestly don’t know what’s going on,” she said. Every single match here is crazy for me. “I was definitely nervous. I’m definitely under pressure but I try and focus on my job, my game.”Chulenska, who had never gone past the second round of a Grand Slam before this tournament, added: “I’m playing against the best players in the world. I’m not going to compare myself to them.”His remarkable journey now continues in the Final Four.