Defeat is never an option for Serena Williams, but the World No 1 came close to an embarrassing second-round exit at the French Open after an 'unprofessional' display on Thursday.
As Russian Maria Sharapova and American Serena Williams get ready to slug it out in their big-ticket semi-final, records and history tells us who has had the upper hand.
Even the Parisian stormclouds cleared for Serena Williams on Tuesday, as the new mother's baby steps back to Grand Slam tennis became a stride into the second round of the French Open.
Williams's publicist Kelly Bush Novak was responding to a report on website Deadspin that an officer from the US Anti-Doping Agency (USADA) had visited seeking to drug test Williams outside the allotted daily window.
Defending champion, Serena Williams has accused the Wimbledon organisers of favouring male players at the tournament.
Serena Williams is a year short of spending a quarter of a century as a professional player but the learning has never stopped for the 23-time Grand Slam winner.
Here's a peek at the stars who came out to cheer the tennis stars...
Maria crowned first Queen's Club women's champion in 52 years
An injury-hampered world number one Serena Williams suffered a shock 6-4, 3-6, 6-1 defeat to Klara Zakopalova of the Czech Republic in the first round of the Andalucia Tennis Championships on Wednesday.
Serena Williams, brimming with confidence and self-belief with every match she plays, stormed into the semi-finals of the US Open on Wednesday with a 6-1, 6-3 demolition of Ana Ivanovic.
Making her Grand Slam comeback in Paris following the birth of her daughter Alexis Olympia last September, Serena Williams will renew her fierce on-court rivalry with Maria Sharapova on Monday when they meet in a highly-anticipated fourth-round showdown at the French Open.
Serena Williams saved three match points and Novak Djokovic revived his stuttering Australian Open preparations in fierce heat at the Sydney International on Wednesday.
A round-up of the fourth day's play at the French Open.
The mother-to-be showed off her baby bump in a flowing green gown as she entered with fianc Alexis Ohanian.
Despite dominating the year by winning three Grand Slam titles in 2015, World No.1 Serena Williams believes she is playing better this year. Williams is once again on the cusp of a historic achievement. Only seventh seed Angelique Kerber stands in the way of the 34-year-old landing a 22nd singles major trophy to draw level with Steffi Graf in the history books. "I kind of relish every win and every final and every match now. I think, maybe in the past I didn't as much. I was just like going through the motions," Williams said. "Even though I was super excited, I just feel like now it's even more exciting." The world No.1 holds a 5-1 lead in head-to-head matches with the powerful leftie but Williams remains wary of the threat presented by Kerber.
Serena Williams denied that she already knows the sex of her unborn baby, a day after big sister Venus appeared to hint that the former world number one is expecting a girl.
It was back in 2003 that Serena Williams first stamped her name on Australian Open history, the then 21-year-old taking down sister Venus to bring home her first title on the blue courts of Melbourne Park.
Australia's Sam Stosur tamed her own pounding heart and repelled everything -- both good and bad -- that Serena Williams hurled at her to win the U.S. Open crown and her first grand slam singles title on Sunday.
Serena 'out of line' but both sides share blame says King
Former world number one Serena Williams continued her return to form with a convincing 6-3, 7-6 victory over Czech Lucie Hradecka in the first round of the Cincinnati Open Tuesday but showed signs of fatigue in her second set.
Serena Williams reached the quarter-finals of the French Open on Monday after a clinical display saw he beat Canadian Aleksandra Wozniak 6-1, 6-2. The 2002 champion, at 27 the oldest woman left in the draw, will face seventh seed Svetlana Kuznetsova for a place in the last four. The Russian beat Poland's Agnieszka Radwanska 6-4, 1-6, 6-1.
World No 1 Serena Williams breezed past older sister Venus 6-1, 6-2 in their first meeting since 2009 in the semi-finals of the Family Circle Cup in Charleston, South Carolina on Saturday.
Serena Williams took another emphatic step in defense of her U.S. Open title by crushing Galina Voskoboeva of Kazakhstan 6-3, 6-0 on Thursday to reach the third round of the year's final Grand Slam.
Serena Williams is a five-times Wimbledon champion but the American has surprisingly declared that she has "never really liked grass".
The showdown will see world number one Serena Williams try to equal Steffi Graf's professional era record of 22 Grand Slam singles titles, while Angelique Kerber will seek to become the first German woman to lift the Wimbledon singles crown since her idol Graf 20 years ago.
Serena Williams returned to the top of the world with a routine win at the China Open on Tuesday but Andy Roddick and Jelena Jankovic plumbed the depths when their title defences ended in their opening matches.
Serena Williams's impressive return from injury ended when she lost 6-2, 6-3 to Russian Vera Zvonareva in the Cincinnati Open semi-finals on Saturday.
Holder Maria Sharapova ended the encouraging run of Venus Williams to reach the semi-finals of the Italian Open on Friday, but Serena Williams enjoyed an easy passage through to the last four.
Serena and Venus Williams, three-time women's doubles Olympic champions, crashed out in the first round at the Rio Games on Sunday in one of the biggest upsets so far in women's tennis. The Williams sisters were beaten by the Czech Republic pair of Barbora Strycova and Lucie Safarova 3-6, 4-6.
Twice Wimbledon champion Serena Williams hailed Michael Jackson on Friday as "the celebrity of all celebrities" and said she was not worthy of having her name mentioned in the same sentence as the late singer.
Defending champion Serena Williams beat China's Li Na 6-0, 6-3 on Friday to reach her second consecutive US Open final.
Serena Williams showed little ill-effect from her long layoff with a knee injury as she powered into the semi-finals of the Italian Open on Thursday.
Serena Williams' scored a ruthless 6-3, 6-1 win over Bethanie Mattek to advance to the quarter-finals of the Cincinnati Open
Coco Gauff is the first Black American to win the French Open since Serena Williams in 2015.
Serena Williams beat Julia Vakulenko of Ukraine 7-5, 6-2 to reach the quarter-finals in Stuttgart.
Dutch teenager Michaella Krajicek is excited about meeting Williams as she had idolised the American while growing up.
Serena Williams produced a serving masterclass to end local interest in the women's draw with a 6-4, 6-2 demolition of Samantha Stosur in the fourth round of the Australian Open on Monday.
The seven-time major champion, speaking as part of a tour to promote his new book 'But Seriously', said that while he has great respect for Serena, he would place the 23-time Grand Slam winner "like 700 in the world" on the men's circuit.
Serena Williams proved an irresistible force once more as she powered past Maria Sharapova 6-4, 6-4 to win the French Open for the second time on Saturday - 11 years after her first triumph.
