Images from Tuesday's matches at the Australian Open.
Factbox on Iga Swiatek, who defeated Sofia Kenin to win her maiden Grand Slam title at the French Open on Saturday.
Petra Kvitova will start the defence of her Wimbledon title next week with no competitive grasscourt practice after pulling out of the Aegon International at Eastbourne where she was top seed.
Eugenie Bouchard was hailed as the new face of women's tennis just 12 months ago but the Canadian's downward spiral continued on Tuesday with a humbling 6-0, 5-7, 6-2 loss to Swiss Belinda Bencic in the opening round of the Rogers Cup.
'If I was a lady player, I'd go down every night on my knees and thank God that Roger Federer and Rafael Nadal were born.'
Indian tennis stars enjoyed a successful start in the US Open as veteran Leander Paes entered the mixed doubles second round while Rohan Bopanna also won his opening tie in the men's doubles event in New York.
Eugenie Bouchard slumped to a first-round defeat at the US Open on Tuesday but the Canadian might yet leave Flushing Meadows a big winner with her lawsuit against the Grand Slam and United States Tennis Association still to hit the courts.
Andrea Petkovic battled back to advance to the semi-finals at the Family Circle Cup in Charleston, South Carolina on Friday while Czech qualifier Lucie Hradecka upset yet another seed with a victory over Sara Errani.
Williams, dubbed the Australian Open favourite by Bouchard shortly after the match, is vying for a record-equalling 24th Grand Slam singles title
Organisers have been criticised by players attempting to make the main draw of the season opening Grand Slam for continuing to play matches despite the poor air quality from bushfires.
2014 Wimbledon finalist Eugenie eliminated in 1st round.
France set up Saturday's Hopman Cup final with Poland after Alize Cornet and Jo-Wilfried Tsonga beat defending champions Spain 3-0 in the mixed teams event on Friday.
Serena Williams may have been second best at the French Open on Saturday but the American has moved ahead of fellow tennis player Maria Sharapova to top the women's earnings list in sports, according to Forbes Magazine. Williams ended the Russian's 11-year reign as the world number one women's money earner in sports by hauling in $28.9 million in combined prize money and off-field earnings over the past 12 months, the magazine said on Monday. Sharapova, who lost some sponsorship money after announcing she had tested positive for the recently banned substance meldonium at the Australian Open in January and is provisionally suspended, holds second spot at $21.9 million.
The Australian Open started with a bang and the stars weren't hard to miss, as most of them were seen wearing loud colours at Melbourne Park.
The jury deliberated for less than an hour before ruling in Bouchard's favour in the lawsuit against the USTA.
World No 1 Novak Djokovic and Serena Williams advanced safely to the next round of the US Open on Saturday but the women's draw saw yet another big upset as Wimbledon winner Petra Kvitova was sent packing by a 145th-ranked qualifier.
Maria Sharapova knows the pitfalls of being a prodigy and after easing into the fourth round at Roland Garros the seasoned grand slam champion offered some sage advice to the new generation in women's tennis.
Caroline Wozniacki became the biggest name to fall at the BNP Paribas Open.
Eleven years after their first meeting in the Australian Open final, Novak Djokovic and Jo-Wilfried Tsonga will take a trip down memory lane on Thursday to renew their rivalry in the second round in Melbourne.
Madison Brengle filed a lawsuit against the Women's Tennis Association and the International Tennis Federation on Monday seeking damages for injuries she says were caused by the repeated drawing of blood for anti-doping tests.
Maria Sharapova's comeback from a doping ban will include an appearance at the Rogers Cup in August after the former world number one was granted a wild card by the organisers of the Toronto tournament on Tuesday.
Serena Williams shook off the rust and a feisty challenge from Serbia's Ana Ivanovic to open the defence of her WTA Finals title with a 6-4, 6-4 victory in the opening match of the elite eight-player tournament on Monday.
But for the 23-year-old Bouchard, a former world number five who has slumped to 56th in the rankings, it was another blow after her first-round exit in Indian Wells.
Angelique Kerber's build-up for next week's Australian Open suffered a setback with the German world number one going down in straight sets to Russian teenager Daria Kasatkina in the second round of the Sydney International.
India's Rohan Bopanna and his Pakistani partner Aisam Qureshi crashed out of the US Open after going down fighting in the men's doubles first round contest at the Flushing Meadows in New York.
Former world number one Victoria Azarenka was forced out of the Aegon Classic in Birmingham with a foot injury on Wednesday shortly after defending champion Ana Ivanovic suffered a shock defeat.
Czech Petra Kvitova won the Aegon Classic in Birmingham on Sunday after fighting back to beat Australian Ashleigh Barty 4-6, 6-3, 6-2.
The level of media coverage surrounding Maria Sharapova's return to tennis from a doping suspension has been a key factor in the five-time Grand Slam winner being offered wildcards to events, men's world number one Andy Murray has said.
Defending champion Novak Djokovic was handed a tough opening round at Wimbledon when Friday's draw paired him with Germany's Philipp Kohlschreiber.
A dominant Rafael Nadal arrived at one career milestone on Thursday but the speed of the Spaniard's rampage through the early rounds of the French Open suggests his eyes are fixed firmly on another more significant one.
Kenin, Andreescu to be part of team event in Charleston in June
Rafael Nadal will have his work cut out when play begins next week, not on the Caja Magica's three red dust courts, but on gaming consoles.
Former World No 1 Caroline Wozniacki reached the quarter-finals of Eastbourne's Aegon Championships with a topsy-turvy defeat of Svetlana Kuznetsova on Wednesday.
Here is a Factbox on Spaniard Garbine Muguruza, who beat American Venus Williams 7-5, 6-0 to win her first Wimbledon singles title on Saturday:
Barty survived a first-round scare at the US Open on Monday
Halep finds groove to reach Prague semi-finals.
Heavyweights Serena Williams, Andre Agassi, and Patrick Rafter will represent Singapore Slammers for the home leg in the inaugural International Premier Tennis League (IPTL) to be held from December 2-4.
Twice Australian Open champion Victoria Azarenka overcame an inspired challenge from qualifier Aleksandra Krunic of Serbia 4-6, 6-4, 6-4 on Monday to advance to the quarter-finals of the US Open.
Venus Williams was denied a chance to better her world record for fastest serve in women's tennis in absence of proper measuring technology at the Pan Pacific Open in Tokyo.
Key facts and records of American Serena Williams and Canada's Bianca Andreescu