Cori 'Coco' Gauff bounces back to beat Sorana Cirstea and set up Australian Open third-round tie with Naomi Osaka

Cori 'Coco' Gauff has beaten Sorana Cirstea 4-6, 6-3, 7-5 to set up a third-round match against defending champion Naomi Osaka at the Australian Open.

Gauff, 15, rallied after losing the first set and got the pivotal service break in the next-to-last game before serving out against 29-year-old Cirstea, who is playing at the Australian Open for a 12th time.

Gauff started the tournament with her second first-round win over Venus Williams in three majors, following her upset over the seven-time grand slam champion at last year's Wimbledon.

Osaka had to overcame swirling winds on Margaret Court Arena to beat Zheng Saisai 6-2, 6-4 in one of the first matches on the third day of the tournament.

Gauff reached the fourth round on her Wimbledon debut and the third round at the US Open.

Speaking afterwards, Gauff said she was looking forward to facing Osaka following their memorable US Open meeting. After brushing aside the teenager 6-3, 6-0, Osaka gained new admirers as she comforted a disconsolate Gauff.

"I think I'll be less nervous this time," she said. "[At the] US Open I was nervous. It was my first time on [Arthur] Ashe. We're both familiar with each other's games. She plays really aggressive. This time coming in I'm going to be more aggressive."

Speaking about Osaka's display of sportsmanship, Gauff added: "It was definitely a good moment I think for both of us, especially me.

"But I think more just for the people watching, the little girls watching and little boys who can kind of see what sportsmanship is.

"If I had a child, that's something I would want my child to see. You might hate the person on the court, but off the court you love them. Not really like hate. But you want to win.

"Sometimes when we're on the court we say things we don't mean because we have that mentality. When it's all said and done, we still look at each other with respect."