Top-seeded Karolina Pliskova has advanced in straight sets at the US Open.
Pliskova surged ahead of Anhelina Kalinina 4-1 in the opening set, lost three games in a row, then took the last eight for a 6-4, 6-0 victory. She had a 26-7 edge in winners.
Pliskova is ranked third in the world but has the top seed in New York.
Three-time Grand Slam champion Angelique Kerber is sticking around longer at Flushing Meadows than she did a year ago.
Kerber eliminated Ajla Tomljanovic 6-4, 6-4 in a nearly empty Louis Armstrong Stadium.
Kerber won the 2016 U.S. Open but lost in the first round a year ago. She used to be ranked No. 1 and is seeded 17th in New York.
