Former world number one and two-time Grand Slam winner Simona Halep announced her retirement from professional tennis on Tuesday after losing in the first round at her home event in Cluj.
Two-time Wimbledon champion Petra Kvitova will return to action this month after a 15-month maternity break, with the Czech set to play in three tournaments in the United States.
"He has lost only four or five matches in the past year, so it's crazy. I know people say who's better out of us. They say Jannik is better or some say me. It's all discussion."
World number one Jannik Sinner will not defend his ATP 500 title in Rotterdam as the Italian's "body needs time to rest" after winning the Australian Open, tournament organisers announced Monday.
Double Australian Open champion Jannik Sinner set his sights on mastering clay and grass courts to make himself a complete player after the Italian claimed his third hardcourt Grand Slam title on Sunday.
The 23-year-old came through a tense battle between the world's top two players 6-3, 7-6 (7/4), 6-3 on Rod Laver Arena, raising his arms in the air and looking to the sky in celebration.
The victory earned the Italian world number one his third Grand Slam crown.
The Australian Open, the first Grand Slam of the year, ends on Sunday when defending champion Jannik Sinner faces Alexander Zverev for the men's title. AFP looks back on five memorable storylines from the past two weeks in Melbourne:
The Serbian pulled off another astonishing escape as he reached a 15th consecutive French Open quarter-final.
De Minaur had never got past the second round at the tournament before this year, winning just three of 10 matches.
The 24-time Grand Slam title winner made the last 16 by defeating Italy's Lorenzo Musetti in a bruising five-set epic which concluded at 3:07 am Sunday.
Carlos Alcaraz produced his best display of the tournament to line up a quarter-final rematch with Stefanos Tsitsipas at the French Open on Sunday.
His four-hour 29-minute victory also allowed the 37-year-old world number one to equal Roger Federer's record of 369 Grand Slam match wins.
Novak Djokovic can equal Roger Federer's record for Grand Slam match wins by beating Lorenzo Musetti at the French Open on Saturday.
Italy's Matteo Arnaldi produced a sensational performance to take out sixth seed Andrey Rublev and reach the last 16 of the French Open on Friday.
Novak Djokovic reached the French Open last 32 for the 19th successive year on Thursday as Roland Garros organisers banned alcohol from the stands in an effort to counter growing complaints from players over disrespectful, rowdy fans.
Swiatek wrapped up victory after nearly three hours.
Wimbledon champion Alcaraz, who made the semi-finals at Roland Garros last year, scrambled to a 6-3, 6-4, 2-6, 6-2 second round victory over a player taking part in only his second Grand Slam main draw.