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AlcarazSinner Rivalry Sets Late-Season Tone as No.1 Defends Lead and No.2 Reworks Serve

Tokyo withdrawals, together with Sinner's serve reset, could shape the race to year‑end No.1.

Overview

  • Carlos Alcaraz features at the Laver Cup before heading to the Tokyo ATP 500 and Shanghai, with Tokyo losing Jiri Lehecka and Fabian Marozsan and now listing only four Top 20 entrants.
  • Jannik Sinner has been drilling his serve motion without a racquet in Monte Carlo and says small technical tweaks are coming, with his first‑serve percentage over 52 weeks at about 60.6% (54th).
  • Sinner is set for Beijing and Shanghai, has added Vienna to his schedule, and has not yet committed to ParisBercy as he looks to defend a heavy late‑season points load.
  • Sinner launched a Foundation in Milan focused on helping boys in need, saying tennis changed his life and he wants to give back.
  • Novak Djokovic is training in Athens, remains on the Shanghai Masters entry list, has confirmed the Six Kings Slam and the new Athens ATP 250, and reached all four major semifinals in 2025.