New York-Sana
World number two Arina Sabalenka easily overcame Barbora Krichkova with a 6-1 6-4 victory to reach her first US Open semi-final.
Sabalenka plays in the semi-finals against in-form Canadian Leila Fernandez, who beat former champions Naomi Osaka and Angelique Kerber as well as world number five Elina Svitolina on her way to the round.