World number one Aryna Sabalenka suffered a shock defeat to Ekaterina Alexandrova at the Qatar Open, granting an opportunity to the chasing pack in the WTA rankings to catch her.
Ekaterina Alexandrova racked up another upset at the Miami Open as she beat Jessica Pegula for a place in the semi-finals, after the shock defeat of Iga Swiatek.
Ninth seed Marketa Vondrousova needed just 57 minutes to dismiss Ekaterina Alexandrova and match her best US Open run by reaching the Round of 16.