US Open, Day 4 roundup: Serena marches on, Murray ousted
What's the story
Day 4 of the US Open 2020 saw India's Sumit Nagal get ousted as Dominic Thiem sealed a comfortable victory, whereas, Andy Murray got ousted.
Russia's Daniil Medvedev made light work of his second-round match against Christoper O'Connell.
In the women's section, Serena Williams set up a third-round meeting with former champion Sloane Stephens.
Here are the key updates from Day 4.
Trio
Mother's Day: Pironkova, Azarenka and Serena advance
Bulgarian Svetana Pironkova - playing her first tournament in three years after a break to have her first child - prolonged her participation with a 7-5, 6-3 win over 10th seed Garbine Muguruza.
Former world number one Victoria Azarenka beat fifth seed Aryna Sabalenka 6-1, 6-3.
Meanwhile, Williams also advanced with a 6-2, 6-4 win over Russia's Margarita Gasparyan.
Results
Other crucial results in the women's singles
Second seed Sofia Kenin showed her prowess this year with a straightforward 6-4, 6-3 victory over Canadian Leylah Fernandez.
Seventh seed Madison Keys of the USA also progressed, making light work of Spain's Aliona Bolsova 6-2, 6-1.
26th seed Stephens beat Olga Govortsova 6-2, 6-2.
The likes of Donna Vekic, Maria Sakkari and Karolina Muchova enjoyed respective victories as well.
Men's singles
Thiem sets up Cilic clash, Medvedev seals victory
Thiem stood tall to overcome Nagal 6-3, 6-3, 6-2 inside an empty Arthur Ashe Stadium.
Thiem will play 2014 US Open champion Marin Cilic in round three.
Croatia's Cilic, seeded 31st, took four sets to overcome Slovakian Norbert Gombos 6-3, 1-6, 7-6, 7-5.
Medvedev progressed to the third round with a 6-3, 6-2, 6-4 win at the expense of 116th-ranked Australian.
Murray
Andy Murray gets beaten by Felix Auger-Aliassime
Andy Murray crashed out in straight sets after getting beaten by Felix Auger-Aliassime.
The former world number one was demolished by the 20-year-old Canadian 6-2, 6-3, 6-4.
Murray, playing in his first singles Grand Slam since the 2019 Australian Open, had rallied to win a thrilling five-set match against Japan's 49th-ranked Yoshihito Nishioka the first round.
Information
Dimitrov and Raonic get knocked out
14th seed Grigor Dimitrov and 25th seed Milos Raonic were knocked out of the US Open. Marton Fucsovics downed Dimitrov 6-7 (5/7), 7-6 (7/4), 3-6, 6-4, 6-1 in 4hr 50min. Meanwhile, Vasek Pospisil beat Raonic 6-7, 6-3, 7-6, 6-3.