Naomi Osaka is also the first woman to win a second Slam immediately after her first since Jennifer Capriati in 2001 but her meteoric rise has been followed by a distinct dip ahead of Roland Garros.
The 15-year-old's popularity has soared off the charts in a memorable week at the All England Club, with organisers also recognising her potential to grab attention and giving her a Centre Court match-up in the third round.
Rediff.com takes a look at players who tested positive for use of banned substances over the years.
Naomi Osaka emerged as a fresh champion at Melbourne Park as well as the new World No 1 on Saturday.
'I will put everything I have Saturday on the court'
There was not an ounce of bitterness as Osaka accepted the Daphne Akhurst Memorial Cup from Asia's first Grand Slam champion Li Na
While the stakes could not be higher on Thursday, Sloane Stephens said there will be no "weirdness" in the locker room.
Fifteen-year-old Cori Gauff clawed her way back from a set and 5-2 down and saved two match points to beat Slovenia's Polona Hercog 3-6, 7-6(7), 7-5 on Friday and reach the Wimbledon fourth round.
IMAGES from Day 8 of the French Open at Roland Garros on Sunday.
The 20-year-old Ostapenko was the first unseeded woman to lift the Suzanne Lenglen Cup since Britain's Margaret Scriven in 1933.
List of Australian Open women's singles champions since the event began in 1922 (Australian unless stated):
Funding Indian start-ups has slowed down.
List of Australian Open women's singles champions since the event began in 1922 (Australian unless stated):
Seven-time champion Serena Williams endured an unlikely scrap in her Wimbledon opener and will look to shake off more rust in the second round on Thursday when she faces another qualifier in 18-year-old Kaja Juvan.
List of French Open women's singles champions:
The 2009 champion who will next face Roger Federer, saved two match points in the fourth set of what was arguably the best of the tournament so far.
The first week of Wimbledon is over and the tournament has been full of surprises. The grudge match between Nick Kyrgios and Rafael Nadal and the rise of the phenom that is Cori 'Coco' Gauff have been the shining moments at this year's tournament.
The Australian Open has seen many unheralded players punching above their weight. Rediff.com takes a look at a few such unseeded players who went the distance in the new millennium.
List of French Open women's singles champions
Simona Halep became the first Romanian in 40 years to lift the French Open trophy at Roland Garros on Saturday.
Jelena Ostapenko became only the sixth female Grand Slam champion to lose in the opening round of their title defence on Sunday when she lost to Kateryna Kozlova at the French Open.
Following Serena Williams's 19th Grand Slam title, here is the list of Australian Open women's singles champions since the event began in 1922 (Australian unless stated)
List of French Open women's singles champions