LINZ, Austria (AP) — Second-seeded Sloane Stephens and top-seeded Angelique Kerber reached the quarterfinals of the Generali Ladies in contrasting styles on Thursday.
Stephens needed 2 ½ hours to defeat Andrea Petkovic of Germany 7-6 (1), 4-6, 6-3, and Kerber cruised past Alexandra Cadantu of Romania 6-1, 6-0 in just 50 minutes.
The 12th-ranked Stephens won just two of the first 14 points and fell behind 5-2 in the first set against Petkovic, but the American saved three set points before dominating in a tiebreaker.
"I let out some screams, which I normally don't do," Stephens said about her slow start. "I am just happy to get through."
Stephens went 3-1 up in the second set before Petkovic reeled off 10 straight points to turn it around. She managed an early break in the third and the Australian Open semifinalist closed out the victory on her third match point.
Stephens will play Stefanie Voegele of Switzerland, who rallied to defeat Karin Knapp of Italy 4-6, 6-2, 7-5 to advance to her first quarterfinals since April.
The 8 Best Natural Gas Stocks. Find Out How to Invest.