Unseeded Sloane Stephens completed a spectacular return from injury by beating fellow American Madison Keys to win the US Open at Flushing Meadows.
Stephens, ranked 83rd, beat 15th seed Keys 6-3 6-0 in the final.
The 24-year-old was ranked as low as 957th six weeks ago, having only returned from 11 months out with a foot injury at Wimbledon.
She becomes only the fifth unseeded woman to win a major title in the Open era.
Both women were making their Grand Slam final debuts, and their combined ranking of 99 was the lowest for a US Open final since the rankings began.