Translation of the article content into English: In the midst of the expectations of countless fans, Chinese tennis player Zheng Qinwen suffered an unexpected defeat! Many fans were still looking forward to her facing off against Sabalenka in the quarterfinals of the Australian Open for another "climbing" battle. However, now only Sabalenka remains in the fight. Upon learning of Zheng Qinwen's upset exit, Sabalenka also expressed her feelings, saying, "I saw that she lost, and I'm very sad. This is a Grand Slam event; it won't become easier for me just because Zheng Qinwen is out. It's not like that!" Many fans are curious as to why Zheng Qinwen, who played so well last season and even managed to defeat players like Polini and Rybakina at the WTA Finals, couldn't even overcome 36-year-old veteran Siegemund, ranked 97th. After all, during the United Cup, Siegemund lost 1-2 to Chinese player Gao Xinyu in the women's singles competition! From my personal analysis, there are three main reasons for Zheng Qinwen's upset exit. These include her team, the Australian Open organizers, and the deviation in Zheng Qinwen's playing style. First, let's talk about Zheng Qinwen's team. In Zheng Qinwen's team, the agent and coach play two very important roles. The former is responsible for making money, while the latter is responsible for performing well in matches. Only when both maintain a balance can Zheng Qinwen manage both aspects of playing well and earning money. However, since Pereira went for surgery, Zheng Qinwen's coach has become the Argentine Botini. The extent of his influence…

On January 14, in the first round of the Australian Open men's singles, Chinese player Zhang Zhizhen challenged the 13th seeded player Rune. Despite winning the first set, Zhang Zhizhen ultimately lost 2-3 and was unable to advance to the second round of the Australian Open. In this match, Zhang Zhizhen had a perfect start. In the first set, he broke serve first and took a 3-1 lead. Subsequently, he won the first set 6-4. In the second and third sets, Zhang Zhizhen was broken once each, while Rune won two consecutive sets 6-4 and 6-3. In the crucial fourth set, with no room for retreat, Zhang Zhizhen held up under pressure and broke serve in the eighth game, winning the set 6-4. Both sides entered the fifth set for the final showdown. In the last set, Zhang Zhizhen played tenaciously. After being broken first by his opponent, he immediately broke back to level the score at 4-4. Unfortunately, Zhang Zhizhen lost the crucial tenth game. In the end, he lost the fifth set 4-6 and the match with a total score of 2-3. Throughout the match, Zhang Zhizhen performed strongly, serving 21 aces and earning the respect of both his opponent and the fans. He was just a little short of advancing to the second round of the Australian Open. As the saying goes, the smaller the gap, the greater the disappointment, and many fans felt extremely sorry for Zhang Zhizhen. In this year's Australian Open, a total of three male singles players participated, namely Zhang Zhizhen, Buyunchaokete, and…