John Isner names the one player most likely to beat Carlos Alcaraz or Jannik Sinner at a Grand Slam
Carlos Alcaraz and Jannik Sinner dominated the Grand Slam scene in 2025 and look set to do the same in 2026. Alcaraz and Sinner split all four major titles between them for the second season in a row last year, and faced each other in the final of three of the tournaments.
