WTA roundup: Donna Vekic, Danielle Collins reach San Diego quarters

Croatia's Donna Vekic and the United States' Danielle Collins became the first two players to reach the quarterfinals of the San Diego Open by winning their second-round matches on Wednesday.

Vekic crushed the Czech Republic's Karolina Pliskova 6-3, 6-2, and Collins ousted Italy's Martina Trevisan 6-2, 6-4.

While Vekic won 70 per cent of her first-serve points, Pliskova wound up at 48 per cent in that category. Collins finished with a 4-0 edge in aces and with seven service breaks to Trevisan's four.

One more second-round match was scheduled for Wednesday night, with fourth-seeded Jessica Pegula due to face Coco Vandeweghe in an all-American matchup.

The day's other match was the completion of a first-round encounter that was suspended due to rain Tuesday night. Sixth-seeded Coco Gauff completed a 6-3, 6-3 victory over qualifier Robin Montgomery in an all-U.S. showdown.

Transylvania Open

Eighth-seeded Anna Bondar of Hungary beat Great Britain's Harriet Dart 7-6 (3), 6-4 in second-round play, earning a quarterfinal berth at Cluj-Napoca, Romania.

Bondar jumped ahead 4-0 in the first-set tiebreaker, lost the next three points, the won the last three. Bondar scored the only service break of the second set to go up 2-1, then served out the match, though she had to save four break points in the final game to hold on.

Italy's Jasmine Paolini defeated Ukraine's Dayana Yastremska 6-4, 6-1 while Germany's Jule Niemeier topped Russia's Kamilla Rakhimova in second-round action. In the final two first-round matches, China's Xinyu Wang upset fifth-seeded Magda Linette of Poland 6-2, 6-4, and Hungary's Dalma Galfi rallied past ninth-seeded Lucia Bronzetti of Italy 4-6, 6-2, 6-4.

--Field Level Media