Canada's Denis Shapovalov serves to USA's Ben Shelton during their men's singles match at the Shanghai Masters tennis tournament in Shanghai on October 4, 2024. (Photo by Hector RETAMAL / AFP) (Photo by HECTOR RETAMAL/AFP via Getty Images)

Canada's Denis Shapovalov hits a return to USA's Ben Shelton during their men's singles match at the Shanghai Masters tennis tournament in Shanghai on October 4, 2024. (Photo by Hector RETAMAL / AFP) (Photo by HECTOR RETAMAL/AFP via Getty Images)

USA's Ben Shelton reacts after falling down during his game against Canada's Denis Shapovalov in their men's singles match at the Shanghai Masters tennis tournament in Shanghai on October 4, 2024. (Photo by Hector RETAMAL / AFP) (Photo by HECTOR RETAMAL/AFP via Getty Images)

USA's Ben Shelton hits a return to Canada's Denis Shapovalov during their men's singles match at the Shanghai Masters tennis tournament in Shanghai on October 4, 2024. (Photo by Hector RETAMAL / AFP) (Photo by HECTOR RETAMAL/AFP via Getty Images)

USA's Ben Shelton hits a return to Canada's Denis Shapovalov during their men's singles match at the Shanghai Masters tennis tournament in Shanghai on October 4, 2024. (Photo by Hector RETAMAL / AFP) (Photo by HECTOR RETAMAL/AFP via Getty Images)

Canada's Denis Shapovalov hits a return to USA's Ben Shelton during their men's singles match at the Shanghai Masters tennis tournament in Shanghai on October 4, 2024. (Photo by Hector RETAMAL / AFP) (Photo by HECTOR RETAMAL/AFP via Getty Images)

Canada's Denis Shapovalov hits a return to USA's Ben Shelton during their men's singles match at the Shanghai Masters tennis tournament in Shanghai on October 4, 2024. (Photo by Hector RETAMAL / AFP) (Photo by HECTOR RETAMAL/AFP via Getty Images)

USA's Ben Shelton hits a return to Canada's Denis Shapovalov during their men's singles match at the Shanghai Masters tennis tournament in Shanghai on October 4, 2024. (Photo by Hector RETAMAL / AFP) (Photo by HECTOR RETAMAL/AFP via Getty Images)