‘I’m not ready to compete’: Jannik Sinner pulls out of Cincinnati Open

World No 1 withdraws because of knee injury Italian trying to stay fit for US Open that starts 30 August The World No 1, Jannik Sinner, has pulled out of the Cincinnati Open because of a knee injury. “After consulting my doctors and my team, I have to announce I need to withdraw from the Masters 1000 tournament,” he said in a statement posted on the ATP website. “My right knee has been bothering…