DOHA, Feb 24 — Jelena Ostapenko continued her excellent form by brushing aside second seed Barbora Krejcikova to reach the Qatar Open quarter-finals on Wednesday, while top seed Aryna Sabalenka eased through.

Former French Open champion Ostapenko, who won the title in Dubai last week, cruised to a 6-3, 6-2 victory to set up a last-eight tie with Garbine Muguruza, who thrashed Madison Brengle 6-0, 6-2.

Ostapenko, who dropped out of the world's top 50 last year, has won eight straight matches, including five against Grand Slam winners.

The 24-year-old is closing in on a return to the top 10, having climbed to 13th in the rankings ahead of this week.

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She was far too strong for world number three and reigning Roland Garros champion Krejcikova, breaking the Czech's serve five times.

Ostapenko is bidding to win a WTA 1,000 tournament for the first time in her career.

Third seed Paula Badosa was also knocked out in the last 16, losing 6-2, 6-3 to Coco Gauff.

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It was the fifth time the 17-year-old Gauff has beaten a top-10 player, but the first since last May.

The American will take on Maria Sakkari for a semi-final spot, after the Greek's 6-4, 7-5 win over Jessica Pegula.

Belarusian world number two Sabalenka swept past Swiss player Jil Teichmann 6-2, 6-1 in just 65 minutes.

The 2020 Doha champion won 10 of the last 11 games in a dominant performance as she seeks to win her first title since last year's Madrid Open in May.

“It was an amazing match, I really played well today,” Sabalenka said. “She played well as well, but maybe I was a little bit more lucky today.”

Sabalenka will face Iga Swiatek in the next round after the former Roland Garros champion breezed past Daria Kasatkina 6-3, 6-0.

World number eight Swiatek has only ever won one hard-court tournament, a low-key event in Adelaide last year.

Tunisia's Ons Jabeur is also through after beating Tereza Martincova 6-1, 3-6, 6-3.

The eighth seed will play fourth-seeded Estonian Anett Kontaveit in the quarters after her 6-3, 0-6, 6-2 success against Elise Mertens. — AFP