Jannik Sinner pulls out of Cincinnati tournament to focus on US Open

In short:

Jannik Sinner says he is unable to compete at the Cincinnati Open, just weeks ahead of the final grand slam of the year.

Sinner has a right knee issue that is plaguing preparations for the US Open in New York.

What's next?

The Cincinnati Open main draw begins on August 13, while the US Open main draw gets underway on August 30.