Aryna Sabalenka of Belarus and Jessica Pegula (R) of the United States hug after their round robin match at WTA Finals tennis tournament in Riyadh, Saudi Arabia, on Nov. 4, 2025. (Xinhua/Luo Chen)

Aryna Sabalenka of Belarus returns a ball during the round robin match against Jessica Pegula of the United States at WTA Finals tennis tournament in Riyadh, Saudi Arabia, on Nov. 4, 2025. (Xinhua/Luo Chen)

Jessica Pegula of the United States serves during the round robin match against Aryna Sabalenka of Belarus at WTA Finals tennis tournament in Riyadh, Saudi Arabia, on Nov. 4, 2025. (Xinhua/Luo Chen)

Jessica Pegula of the United States returns a ball during the round robin match against Aryna Sabalenka of Belarus at WTA Finals tennis tournament in Riyadh, Saudi Arabia, on Nov. 4, 2025. (Xinhua/Luo Chen)

Jessica Pegula of the United States returns a ball during the round robin match against Aryna Sabalenka of Belarus at WTA Finals tennis tournament in Riyadh, Saudi Arabia, on Nov. 4, 2025. (Xinhua/Luo Chen)

Aryna Sabalenka of Belarus serves during the round robin match against Jessica Pegula of the United States at WTA Finals tennis tournament in Riyadh, Saudi Arabia, on Nov. 4, 2025. (Xinhua/Luo Chen)

Jessica Pegula of the United States returns a ball during the round robin match against Aryna Sabalenka of Belarus at WTA Finals tennis tournament in Riyadh, Saudi Arabia, on Nov. 4, 2025. (Xinhua/Luo Chen)

Jessica Pegula of the United States returns a ball during the round robin match against Aryna Sabalenka of Belarus at WTA Finals tennis tournament in Riyadh, Saudi Arabia, on Nov. 4, 2025. (Xinhua/Luo Chen)

Aryna Sabalenka of Belarus serves during the round robin match against Jessica Pegula of the United States at WTA Finals tennis tournament in Riyadh, Saudi Arabia, on Nov. 4, 2025. (Xinhua/Luo Chen)

Jessica Pegula of the United States returns a ball during the round robin match against Aryna Sabalenka of Belarus at WTA Finals tennis tournament in Riyadh, Saudi Arabia, on Nov. 4, 2025. (Xinhua/Luo Chen)