USA eighth seed Serena Williams, seeking her 24th career Grand Slam title to match Margaret Court's all-time record, got a scare before ousting 17-year-old U.S. wildcard Caty McNally 5-7, 6-3, 6-1.
Williams was broken back midway through the second set but it was an otherwise flawless display.
The following year, she won the first of her six US Open titles.
Serena Williams was relieved to get back to "business" after sweeping into the US Open fourth round.
"Had to go out there on business", Williams said.
The 38-year-old Swiss third seed, who also dropped the first set against Indian qualifier Sumit Nagal in his opener, answered the wake-up call after conceding the first set with 17 unforced errors.
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Danish defender Vestergaard broke his duck for the club with a towering 58th-minute header to cancel out Daniel James' opener. And Scholes believes his old side require a lot of work before they're in a position to challenge for silverware.
With Martic serving at 2-3, 15-30 in the second, Williams rolled her ankle on a net approach and took a nasty spill to the cement, making an advance call for the trainer after gingerly making it to her feet. "So far I'm good". "When I went out there, I just anxious about myself, but obviously I knew I was playing against the greatest of all time", McNally said.
As for Martic, she pulled off the day's first upset.
Petra Martic is coming off a straight sets win over Anastasija Sevastova that took 19 games to decide. Serena hasn't been bounced before the quarters at the US Open since 2006 when she lost in the fourth round.
The painful-looking incident did not prevent Williams from winning the next two points to break serve, and she duly completed a 6-3 6-4 victory after undergoing treatment during a medical timeout. Martic has won each of her last five sets and has been consistent getting her first serve in play. The match is scheduled to start after 2:00 pm local time (7:00 pm BST) and here, you can find the Serena Williams v Petra Martic live streaming options with the preview. I played really well, served really solid. But then again, Martic has always found a way to perform well in Grand Slams. "I think that's huge", McNally said after her 5-7 6-3 6-1 second-round loss to Williams on Wednesday.
Having moved 5-3 up when Martic stumbled on the baseline, a fired-up Williams had to save two break points before she took a leaf out of the Croatian's book with a drop-shot victor that sealed the set.
Chinese No. 1 Wang reached the round of 16 after beating Fiona Ferro 7-6 (1), 6-3.