19-year-old tennis star Carlos Alcaraz loses to Gael Monfils at Cincinnati Open.

19-year-old tennis star Carlos Alcaraz, reigning Roland Garros and Wimbledon champion, experienced a disappointing defeat against 37-year-old Gael Monfils at the Cincinnati Open, calling it his "worst match" in his career. Alcaraz smashed his racket in frustration during the 4-6, 7-6 (7-5), 6-4 loss. Monfils advanced by winning the final two sets, while top-ranked Iga Swiatek also advanced to the women's quarterfinals.