Jannik Sinner retired from the final at the Cincinnati Open, which also derailed his plans for the US Open this year a bit. Everything was looking great for Sinner ahead of the ATP Masters 1000 ...

Jannik Sinner could find it "difficult to regain top form" ahead of the US Open if he needs a full week to recover from the illness that struck him down at the Cincinnati Open.

Divisive US Open mixed doubles was a surprise success but must change to survive - Fans flocked to New York and mixed doubles was the star of the show — but there remains a fundamental flaw with the n ...