Wozniacki edges through
Caroline Wozniacki had to survive a scare before reaching the second round of the New Haven Open in Connecticut.
The fourth seed lost the opening set to Timea Bacsinszky before regrouping to claim a 4-6 6-1 6-2 victory.
"I have to give her credit," Wozniacki told wtatennis.com. "She started off well, playing very aggressively. I felt pretty good out there. It just took me a little while to get started. I'm happy to be through to the next round.
"I love playing here. I think it helps that I've won here four times, so the crowd kind of knows me by now. It's nice to be back, and it's nice to play somewhere where you've played well before. It gives you confidence right when you walk out on the court."
Eugenie Bouchard, the No 3 seed, had no such problem as she crushed Bojana Jovanovski 6-1 6-1 but fellow ranked players Dominika Cibulkova and Sara Errani both crashed out.
Cibulkova, seeded fifth, went down 7-6 (7-2) 6-3 to wild card Andrea Petkovic, while No 7 seed Errani suffered a 6-2 3-6 6-1 defeat to Garbine Muguruza.
Kirsten Flipkens and Samantha Stosur needed three sets to advance. Flipkens edged out Misaki Doi 6-3 4-6 6-2, while Stosur won an epic against another Japanese player, beating Kurumi Nara 7-6 (7-5) 6-7 (12-10) 6-2.
Peng Shuai, Caroline Garcia, Magdalena Rybarikova and Barbora Zahlavova Strycova were among the other first-round winners.