Russian Ekaterina Alexandrova, the second seed, won against German qualifier Jule Niemeier 6-3, 6-0 to advance to the last 8 of the Upper Austria Ladies at the TipsArena in Linz.

Alexandrova, ranked No 21, will face the winner of the match between Russian Anastasia Potapova, the No 5 seed, and Italian Elisabetta Cocciaretto next.

In the previous round of the Linz tournament, Niemeier, ranked No 159, beat Russian Anna Blinkova (6-3, 6-4).

Linz WTA 500, other second-round results (TipsArena, hard, USD 802.237, most recent results first):

• Jelena Ostapenko vs. Clara Tauson
• Anastasia Potapova vs. Elisabetta Cocciaretto
• Dayana Yastremska vs. Donna Vekic
• Katerina Siniakova vs. Clara Burel
• Elise Mertens vs. Lucia Bronzetti
• Anastasia Pavlyuchenkova vs. Katie Boulter
• Jodie Burrage (Q) beat Jaqueline Cristian (LL): 6-3, 7-6 (5)