Italy's Jannik Sinner waves after he received the ATP year-end No.1 trophy during the ATP Finals tennis tournament in Turin on November 11, 2024. (Photo by Marco BERTORELLO / AFP) (Photo by MARCO BERTORELLO/AFP via Getty Images)

Russia's Andrey Rublev hits a return to Germany's Alexander Zverev during their match at the ATP Finals tennis tournament in Turin on November 11, 2024. (Photo by Marco BERTORELLO / AFP) (Photo by MARCO BERTORELLO/AFP via Getty Images)

Italy's Jannik Sinner (C) poses with the ATP year-end No.1 trophy along with former tennis players Boris Becker and ATP's President Andrea Gaudenzi (R), during the ATP Finals tennis tournament in Turin on November 11, 2024. (Photo by Marco BERTORELLO / AFP) (Photo by MARCO BERTORELLO/AFP via Getty Images)

Italy's Jannik Sinner (C) poses with the ATP year-end No.1 trophy along with former tennis players Boris Becker and ATP's President Andrea Gaudenzi (R), during the ATP Finals tennis tournament in Turin on November 11, 2024. (Photo by Marco BERTORELLO / AFP) (Photo by MARCO BERTORELLO/AFP via Getty Images)

Italy's Jannik Sinner poses with the ATP year-end No.1 trophy during the ATP Finals tennis tournament in Turin on November 11, 2024. (Photo by Marco BERTORELLO / AFP) (Photo by MARCO BERTORELLO/AFP via Getty Images)

Italy's Jannik Sinner poses with the ATP year-end No.1 trophy during the ATP Finals tennis tournament in Turin on November 11, 2024. (Photo by Marco BERTORELLO / AFP) (Photo by MARCO BERTORELLO/AFP via Getty Images)

Italy's Jannik Sinner receives the ATP year-end No.1 trophy during the ATP Finals tennis tournament in Turin on November 11, 2024. (Photo by Marco BERTORELLO / AFP) (Photo by MARCO BERTORELLO/AFP via Getty Images)

Italy's Jannik Sinner receives the ATP year-end No.1 trophy during the ATP Finals tennis tournament in Turin on November 11, 2024. (Photo by Marco BERTORELLO / AFP) (Photo by MARCO BERTORELLO/AFP via Getty Images)