On January 20, 2022, Beijing time, the fourth matchday of the Australian Open, six seeded players including Muguruza, Kontaveit, Lebakina, Radukanu, Dimitrov and Schwartzman were out. Three Grand Slam champions stopped in this matchday's singles match, with the exception of Muguruza, Raducano and Andy Murray. Returning to the Australian Open, Andy Murray lost 4-6 to Japanese player Daniel Taro in three games, missing out on the round of 32.
In the women's singles field, this matchday has been a big upset, and last season's WTA Finals champion and runner-up winners Muguruza and Kontaveit were eliminated by low-ranking players, which was a big surprise. No. 12 seed Lebakina lost the first set 4-6 and retired due to injury when she fell behind 0-1 in the second set, and her opponent Zhang Shuai advanced to the round of 32. In addition to Zhang Shuai, Wang Qiang passed the previous matchday, and the two Chinese Golden Flowers reached the round of 32, Wang Qiang will face Case in the third round, and Zhang Shuai's opponent in the third round is Mertens.
Unfortunately, the young player Wang Xinyu was reversed by the No. 2 seed Sabalenka in the case of winning the first set and missed the round of 32. No. 17 seed Raducannu, who made his late appearance, was plagued by a right-hand injury and lost 4-6, 6-4, 3-6 to Corvinich, and last season's US Open champion was eliminated in the second round. On this match day, the women's singles field sent away two Grand Slam champions, Muguruza and Radukanu.
In addition to Muguruza and Radukanu, there is also a Grand Slam champion out of the men's singles field, that is, Andy Murray, who has returned to the Australian Open. Against Japanese player Daniel Taro, Andy Murray remained on the back burner, losing 4-6 in three games and missing out on the round of 32. This was Murray's third career loss to a Japanese player, the first two times to Kei Nishikori, and this time swept by 120th-ranked Daniel Taro, who also reached the round of 32 singles for the first time in his career.
In addition, there are several seeded players out of the men's singles field, namely Dimitrov and Schwartzman. No. 26 seed Dimitrov lost 1-3 to Parre, and No. 13 seed Schwartzman was surprised to lose 6-7, 4-6, 4-6 to homegrown wild card O'Connell, who was only ranked 175th. No. 2 seed Medvedev, No. 4 seed, No. 5 seed Rublev, No. 9 seed Aliassim and other famous players have successfully advanced to the round of 32!