Meanwhile, on Arthur Ashe...published at 19:46 British Summer Time 29 August 2018
Stephens 4-6 7-5 3-1 Kalinina
Women's defending champ Sloane Stephens has had to battle, really battle, against world number 134 Anhelina Kalinina.
It should have been a breeze for the American - talking of breeze there has been a lack of it on another very hot and humid day.
The third seed also needed treatment on a blister on her hand, which is not great if you need to use a racquet to earn a living.
However, she's just broken the Ukrainian and then held her own serve.
Happy days in the Stephens camp.
You can listen to the match right now on BBC Radio 5 live sports extra.