World No.2 and top seed Anett Kontaveit has cruised into the second round of the WTA event in Hamburg where she'll face local hope Andrea Petkovic.

Top-seeded Anett Kontaveit has advanced to the quarter-finals of the Hamburg Open with a 6-3 6-2 win over Sweden's Rebecca Peterson.

Kontaveit, ranked second in the world, broke Peterson's serve five times in their 91-minute second-round match on Wednesday. The Estonian will take on Germany's Andrea Petkovic for a spot in the semi-finals.

It will be only Kontaveit's second appearance in a last-eight match since February after her season was disrupted by a coronavirus infection in the spring.

Fourth-seeded Aliaksandra Sasnovich of Belarus was a 6-3 6-2 winner against Aleksandra Krunic of Serbia to set up a quarter-final meeting with seventh-seeded Maryna Zanevska.

The Belgian was a round-of-16 straight-sets winner, as was Russia's Anastasia Potapova and American Bernarda Pera.

At the Palermo Open in southern Italy, third seed Shuai Zhang of China was forced to withdraw pre-match and allow Jasmine Paolini a free ride into the quarter-finals.

Fourth seed Sara Sorribes Tormo of Spain was a 6-0 6-2 winner over Leolia Jeanjean.

Romania's Irini-Camelia Begu, the sixth seed, saw off Frenchwoman Oceane Dodin 1-6 6-2 6-4 while the seventh-seeded Anna Bondar won the all-Hungarian tie with Panna Udvardy 6-2 6-4.