Tiafoe Sends a Message to Sinner: “I’ve Learned to Suffer; Anyone Who Wants to Beat Me Will Have to Work Hard” Muchova: “Winning in Doha Took a Huge Weight Off My Shoulders” Gauff: “This is a tournament I can look back on for the rest of the season” Rafa Nadal Defends Alcaraz: “We Should Only Thank Him for What He Is Doing” Sinner Wants More: “If I Want to Go Far in This Tournament, I Must Improve from the Baseline”