2026 United Cup tennis tournament Group B round robin match: China vs. Belgium

Zhang Zhizhen of China hits a return during the men's singles match against Zizou Bergs of Belgium in the Group B round robin match between China and Belgium at the 2026 United Cup tennis tournament in Sydney, Australia, Jan. 3, 2026. (Xinhua/Ma Ping)

Zhang Zhizhen of China celebrates during the men's singles match against Zizou Bergs of Belgium in the Group B round robin match between China and Belgium at the 2026 United Cup tennis tournament in Sydney, Australia, Jan. 3, 2026. (Xinhua/Ma Ping)

Elise Mertens of Belgium serves to Zhu Lin of China during the women's singles match in the Group B round robin match between China and Belgium at the 2026 United Cup tennis tournament in Sydney, Australia, Jan. 3, 2026. (Xinhua/Ma Ping)

Zhu Lin of China hits a return to Elise Mertens of Belgium during the women's singles match in the Group B round robin match between China and Belgium at the 2026 United Cup tennis tournament in Sydney, Australia, Jan. 3, 2026. (Xinhua/Ma Ping)

Zizou Bergs of Belgium reacts during the men's singles match against Zhang Zhizhen of China in the Group B round robin match between China and Belgium at the 2026 United Cup tennis tournament in Sydney, Australia, Jan. 3, 2026. (Xinhua/Ma Ping)

Zhang Zhizhen of China serves during the men's singles match against Zizou Bergs of Belgium in the Group B round robin match between China and Belgium at the 2026 United Cup tennis tournament in Sydney, Australia, Jan. 3, 2026. (Xinhua/Ma Ping)

Zhang Zhizhen of China serves during the men's singles match against Zizou Bergs of Belgium in the Group B round robin match between China and Belgium at the 2026 United Cup tennis tournament in Sydney, Australia, Jan. 3, 2026. (Xinhua/Ma Ping)

Zhu Lin of China hits a return during the women's singles match against Elise Mertens of Belgium in the Group B round robin match between China and Belgium at the 2026 United Cup tennis tournament in Sydney, Australia, Jan. 3, 2026. (Xinhua/Ma Ping)

Elise Mertens of Belgium celebrates during the women's singles match against Zhu Lin of China in the Group B round robin match between China and Belgium at the 2026 United Cup tennis tournament in Sydney, Australia, Jan. 3, 2026. (Xinhua/Ma Ping)

Zhang Zhizhen of China hits a return during the men's singles match against Zizou Bergs of Belgium in the Group B round robin match between China and Belgium at the 2026 United Cup tennis tournament in Sydney, Australia, Jan. 3, 2026. (Xinhua/Ma Ping)

Zhu Lin of China serves to Elise Mertens of Belgium during the women's singles match in the Group B round robin match between China and Belgium at the 2026 United Cup tennis tournament in Sydney, Australia, Jan. 3, 2026. (Xinhua/Ma Ping)

Zizou Bergs of Belgium celebrates during the men's singles match against Zhang Zhizhen of China in the Group B round robin match between China and Belgium at the 2026 United Cup tennis tournament in Sydney, Australia, Jan. 3, 2026. (Xinhua/Ma Ping)

Zhu Lin of China celebrates during the women's singles match against Elise Mertens of Belgium in the Group B round robin match between China and Belgium at the 2026 United Cup tennis tournament in Sydney, Australia, Jan. 3, 2026. (Xinhua/Ma Ping)