Spain's Paula Badosa kept her Indian Wells WTA title defense on track on Tuesday, holding off determined Canadian Leylah Fernandez to reach the quarter-finals in the California desert.
Badosa, seeded fifth, saved five of the six break points she faced and kept last year's US Open runner-up under pressure -- converting three of her 12 break chances. "Today was very tough," said Badosa, who lifted the trophy last October in a tournament moved from its usual March date because of the coronavirus pandemic.
"Leylah is an amazing player, very fast and good timing. I knew I had to fight and serve very well. I think I did that the entire match."
World number four Iga Swiatek, the highest-ranked player remaining in the women's field, rallied from a set down for a third straight match to book her quarter-final berth, beating crafty German veteran Angelique Kerber 4-6, 6-2, 6-3.
Swiatek, the 2020 French Open champion, is coming off a title in Doha last month, but the 20-year-old admitted it took her a while to figure out how to tackle Kerber - another former Grand Slam champion.
"Truth be told, I wasn't really sure what my tactics should be, if I should be more aggressive or play more patient game," she said. "But at the end I think I made the right decision in right time, in right moments of the match."
Swiatek next faces American Madison Keys, who beat British qualifier Harriet Dart 6-1, 6-4.
Former world number one Simona Halep of Romania, seeded 24th, swept into the quarter-finals with a 6-1, 6-4 victory over 26th-seeded compatriot Sorana Cirstea.
Halep, a two-time Grand Slam champion is in the quarters for the fifth time at Indian Wells, where she lifted the trophy in 2015.
Halep will play Petra Martic for a place in the semi-finals. Croatia's Martic beat Liudmila Samsonova 7-6 (8/6), 6-4.
Sixth-seeded Maria Sakkari of Greece advanced with a victory over Australian qualifier Daria Saville, who was trailing 4-1 when she retired with a left thigh injury.
Sakkari will play Elena Rybakina, who beat Viktorija Golubic 7-6 (7/5), 6-2.