Serena Williams fought back from a set down to beat fellow American Christina McHale and reach the quarter-finals of the Auckland Classic.
Williams, who reached the doubles semi-finals with Caroline Wozniacki on Wednesday, eventually came through 3-6, 6-2, 6-3.
“I really need to play matches like that to get to my goals,” the 23-time Grand Slam singles champion said.
“Tournament time is super important. After losing that first set I’m just glad to be still in the event.”
Williams has also put a dress she wore earlier in the week up for auction to raise money for the bushfire relief fund in Australia.
She will face Laura Siegemund next after the German beat 15-year-old Coco Gauff 5-7, 6-2, 6-3.
American Gauff jokingly told off her father and coach, Corey, for swearing during an on court during a change of ends. – BBC.