Ekaterina Alexandrova (No. 26 ranking) will face Jessica Pegula (No. 5) in the quarterfinals at the WTA Doha, Qatar on Thursday, February 13.Alexandrova earned a two-set win over Elise Mertens

World No. 26 Ekaterina Alexandrova continues her impressive run at the WTA 1000 tournament in Doha after creating another big comeback to beat No. 6 seed Jessica Pegula 4-6 6-1 6-1. In the first set, the American blew an early break but got another one in the fifth game before serving out for the opener in the 10th game.

Sixth-seed Jessica Pegula has advanced to the quarterfinals of the Doha Open with a 6-3, 7-5 victory over Daria Kasatkina.

The second-seeded Swiatek will next play Elena Rybakina, who beat Rebecca Sramkova 7-6 (1), 6-2. Sixth-seeded Jessica Pegula also reached the quarterfinals with a 6-3, 7-5 victory over Daria Kasatkina.

Doha: Ekaterina Alexandrova ousted sixth-seed Jessica Pegula to sweep into the semi-finals of the WTA Qatar Open on Thursday. Russian Alexandrova won 4-6, 6-1, 6-1 to set up a meeting with either Ukraine’s Marta Kostyuk or American Amanda Anisimova for a place in the final.

Three-time defending champion Iga Swiatek advanced to the semi-finals of the WTA Qatar Open on Thursday with a straight sets win over last year's runner-up Elena Rybakina. But the Pole was broken at the start of the second and struggled to catch up for a long time,