BEIJING, CHINA - SEPTEMBER 28: Jannik Sinner of Italy returns a shot in the Men's Singles Round of 16 against Roman Safiullin of Russia on Day 6 of the China Open at National Tennis Center on September 28, 2024 in Beijing, China. (Photo by Lintao Zhang/Getty Images)

BEIJING, CHINA - SEPTEMBER 28: Jannik Sinner of Italy returns a shot in the Men's Singles Round of 16 against Roman Safiullin of Russia on Day 6 of the China Open at National Tennis Center on September 28, 2024 in Beijing, China. (Photo by Lintao Zhang/Getty Images)

BEIJING, CHINA - SEPTEMBER 28: Jannik Sinner of Italy celebrates a point in the Men's Singles Round of 16 against Roman Safiullin of Russia on Day 6 of the China Open at National Tennis Center on September 28, 2024 in Beijing, China. (Photo by Lintao Zhang/Getty Images)

BEIJING, CHINA - SEPTEMBER 28: Jannik Sinner of Italy celebrates a point in the Men's Singles Round of 16 against Roman Safiullin of Russia on Day 6 of the China Open at National Tennis Center on September 28, 2024 in Beijing, China. (Photo by Lintao Zhang/Getty Images)

BEIJING, CHINA - SEPTEMBER 28: Jannik Sinner of Italy celebrates a point in the Men's Singles Round of 16 against Roman Safiullin of Russia on Day 6 of the China Open at National Tennis Center on September 28, 2024 in Beijing, China. (Photo by Lintao Zhang/Getty Images)

BEIJING, CHINA - SEPTEMBER 28: Jannik Sinner of Italy celebrates a point in the Men's Singles Round of 16 against Roman Safiullin of Russia on Day 6 of the China Open at National Tennis Center on September 28, 2024 in Beijing, China. (Photo by Lintao Zhang/Getty Images)

BEIJING, CHINA - SEPTEMBER 28: Jannik Sinner of Italy celebrates a point in the Men's Singles Round of 16 against Roman Safiullin of Russia on Day 6 of the China Open at National Tennis Center on September 28, 2024 in Beijing, China. (Photo by Lintao Zhang/Getty Images)

BEIJING, CHINA - SEPTEMBER 28: Jannik Sinner of Italy celebrates a point in the Men's Singles Round of 16 against Roman Safiullin of Russia on Day 6 of the China Open at National Tennis Center on September 28, 2024 in Beijing, China. (Photo by Lintao Zhang/Getty Images)