Sinner withdraws from US Open with knee injury

NEW YORK (AP): Top-ranked Jannik Sinner withdrew from the US Open yesterday unable to recover from a right knee injury that has sidelined him since winning the Wimbledon title. Sinner beat Alexander Zverev last month for his second straight title at the All England Club, but then pulled out of the hard-court tournaments in Montreal and Cincinnati that serve as a warm-up for the US Open. The 25-year-old Italian wrote yesterday that he won’t be ready when the main draw begins on August 30.