he lost to Dominic Thiem. Khachanov's maiden Slam quarterfinal saw him enter the top-10 for the first time as world No. 9. In August, Khachanov reached his first tournament semifinal of the year after beating Alexander Zverev in the quarterfinals of the Montreal Masters. In the semifinals, he was defeated by compatriot Daniil Medvedev. After the Rogers Cup, Khachanov reached the semifinals of the China Open. He failed to defend his title at the Paris Masters, losing in the second round to Jan-Lennard Struff, and dropped out of the top 10. 2020: ATP Cup semifinals, Fourth consecutive French Open fourth round Khachanov entered the Auckland Open as third-seeded, losing the first match against John Millman. He then joined team Russia, also consisting of Medvedev, Gabashvili and Kravchuk, at the ATP Cup. He beat four out of five players, with team Russia progressing to the semifinals, where they lost to eventual champion Serbia. At the 2020 US Open, Khachanov beat Jannik Sinner, coming back from 2 sets down, then beat Andrey Kuznetsov, before losing to Alex de Minaur in the third round. In Rome, Khachanov lost in the first round to Casper Ruud. He came back to form in time for the French Open, where he reached the fourth round for a fourth consecutive year, beating Kamil Majchrzak, Jiří Veselý and Cristian Garín, before losing to world No. 1 Novak Djokovic. 2021: Two ATP semifinals, Wimbledon quarterfinal, Olympic silver medallist At the 2021 Australian Open, Khachanov progressed to the third round for the third year in a row. He reached two semifinals, at the lead-up event to the AO at the 2021 Great Ocean Road Open, where he was defeated by eventual champion Jannik Sinner, and at the clay warm-up event to the French Open at the 2021 Lyon Open, where he was defeated by Cameron Norrie. At the 2021 Wimbledon Championships he reached the fourth round for the second time. This marked the first time three Russian players reached the fourth round at the All England Club since 2006, when Elena Dementieva, Anastasia Myskina and Maria Sharapova made their run. He continued by reaching the quarterfinals for the first time in his career, defeating Sebastian Korda in a tight match that finished in a fifth set tiebreak. He then lost in another five-set match, against Denis Shapovalov. At the Tokyo Olympics, Khachanov defeated Yoshihito Nishioka, James Duckworth, Diego Schwartzman and