Hello
57results for ""
Gauff, the youngest woman ever to survive the qualifying tournament, played like a seasoned performer as she clinically beat the 39-year-old great 6-4 6-4 to earn a standing ovation from an enchanted Court One crowd.
Barty could face former champion Garbine Muguruza in the third round and awaiting in the quarterfinals could be defending champion Angelique Kerber or seven-time winner Serena Williams with twice champion Petra Kvitova a potential obstacle in the semifinal.
Naomi Osaka's quest for a third consecutive Grand Slam title almost came to an abrupt end as a number of top players struggled to book their spots in the second round of the French Open.
The win improved Rafael Nadal's Roland Garros record to 87-2.
The German fifth seed lost 6-4, 6-2 to world No. 81 Anastasia Potapova.
The 25-year-old Collins had not won a match in her previous five Grand Slam appearances but has now made it to the last four in her first main draw showing at Melbourne Park.
The year's opening Grand Slam will for the first time feature an extended tie-break in the final set when the score reaches 6-6. To win the decisive tie-break, a player will need to be the first to 10 with an advantage of at least two points.
The duo beat Alexander Zverev and Angelique Kerber of Germany 4-0, 1-4, 4-3(4) in the deciding mixed doubles rubber.
The duo will take on Roger Federer and Belinda Bencic on Saturday in a repeat of last year's final.
Kiki Bertens advanced to the semis after Naomi Osaka retired with a left hamstring injury at the end of first set.