American Coco Gauff shocked world number one Iga Swiatek in a thriller to reach the Cincinnati Open final.
Gauff had never managed to win a set in her seven previous matches against the Pole, but showed huge determination to win 7-6 (7-2) 3-6 6-4.
The teenager had dominated the first set tie-break but Swiatek broke early in the second set and soon levelled it.
Gauff grabbed the first break point chance in the decider and held on for the biggest win of her career.
More to follow.