Maria Sharapova's claycourt season got off to a poor start on Tuesday as she lost in three sets to Caroline Garcia in the first round of the Porsche Tennis Grand Prix in Stuttgart.
Round-robin formats at tennis tournaments can cause confusion but Serena Williams has an easy solution, just keep winning.
Venus Williams kept up with little sister Serena on Wednesday, beating 78th-ranked Timea Bacsinszky of Switzerland in straight sets to advance to the third round of the US Open.
Serena Williams played with fire at the French Open on Thursday but the world number one pulled through to the third round with a 5-7, 6-3, 6-3 win against unheralded German Anna-Lena Friedsam.
World No 1 Serena Williams beat Agnieszka Radwanska for the eighth time in eight matches to move ominously towards the semi-finals of the WTA Championships on Wednesday.
Novak Djokovic and Serena Williams are top seeds at the major starting Monday
Serbia's Novak Djokovic is the top seed in the men's draw which includes five-times US Open champion and 17-times Grand Slam winner Roger Federer as seventh seed - his first time the Swiss has been placed outside the top three in a Grand Slam in over ten years.
Top ranked Serena Williams made a successful return to hard courts with a 6-3, 6-2 thrashing of former French Open champion Francesca Schiavone in the second round of the Rogers Cup on Wednesday.
Reigning champions Novak Djokovic and Serena Williams have been named top seeds for the Australian Open starting on Monday.
Sania Mirza became the first Indian to climb to the top of the WTA doubles ranking after she teamed up with Swiss great Martina Hingis to claim the Family Circle Cup title on Sunday.
Former world number one Maria Sharapova eased past defending champion Peng Shuai 6-3, 6-1 at the Tianjin Open on Saturday to reach her first WTA final in almost two and a half years.
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.
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.
Leander Paes got the better of compatriot Mahesh Bhupathi in a thrilling mixed doubles encounter to enter the third round at the Australian Open, in Melbourne, on Monday. He and Daniela Hantuchova beat eighth seeds Bhupathi and Elena Vesnina 6-0, 2-6, 10-6.
Britain's Andy Murray enjoyed a routine win over Argentina's Juan Monaco to ease into the third round of the tennis tournament at the Rio Games on Tuesday, while Spain's world number nine David Ferrer was knocked out.
Denmark's Caroline Wozniacki said nerves and a slow start cost her any chance of beating Serena Williams in the US Open final on Sunday.
The glittering career of Russian former World No 1 Maria Sharapova was in tatters after she was given a two-year ban by the International Tennis Federation. Check out the high points in her career...
Russia, last year's runners-up, were unable to call on world number six Maria Sharapova who was injured
World number five Juan Martin del Potro began his 2014 season with a win, albeit a scrappy one over Frenchman Nicolas Mahut to advance to the quarter-finals of the Sydney International on Wednesday.
Defending champion Petra Kvitova suffered a shock exit when unseeded Romanian Sorana Cirstea beat the Czech 4-6 7-5 6-2 on Friday to move in the semi-finals of the Rogers Cup.
A long measure of Grand Slam patience paid off for Peng Shuai of China, who reached the semi-finals of the US Open on Tuesday by routing Swiss teenager Belinda Bencic 6-2, 6-1 in the Flushing Meadows heat.
Caroline Wozniacki upset French Open champion Maria Sharapova in a groundstroke marathon to reach the U.S. Open quarter-finals, while Gilles Simon registered the first big surprise in the men's draw.
The ATP issued the latest men's tennis rankings on Monday and the top 10 list remains unchanged with Serbian tennis ace Novak Djokovic still leading the rankings.
Defending champion Serena Williams is the top seed in the women's draw. The American will be looking to equal Steffi Graf's Open era record by sealing a 22nd Grand Slam triumph.
Former US Open champion Juan Martin Del Potro underlined his status as a dark horse for next week's Australian Open by hammering Dmitry Tursunov to reach the final of the Sydney International on Friday.
Novak Djokovic barely got out of first gear but had more than enough in the tank to beat Briton Kyle Edmund 6-3, 6-3 in the second round of the Miami Open on Friday.
Images from Monday's action at the French Open.
Images from Day 3 of the 2020 French Open at Roland Garros, in Paris, on Tuesday.
List of French Open women's singles champions:
A summary of sports events and persons who made news on Monday
List of French Open women's singles champions
Images from Day 4 of the French Open matches played at Roland Garros in Paris on Wednesday
Simona Halep became the first Romanian in 40 years to lift the French Open trophy at Roland Garros on Saturday.
Kei Nishikori swept aside Rafael Nadal in the quarter-finals of the Rogers Cup.
Top 10 seeds David Ferrer, Tomas Berdych, Stan Wawrinka and Richard Gasquet raced into the second round of the Australian Open on Monday, apparently eager to make the most of relatively mild conditions at Melbourne Park.
List of French Open women's singles champions
A summary of the matches from Day 9 at the French Open.
Former world number one Andy Murray withdrew from the Brisbane International with a hip problem on Tuesday, further putting in doubt the Briton's prospects of being fit in time for the Australian Open later this month.
US Open champions Marin Cilic and Serena Williams kicked off their China Open campaigns with straight sets victories against battling underdogs on Monday, but Rafael Nadal suffered defeat in a rare doubles outing on his return from injury.
Reigning French Open champion Maria Sharapova, former world number one Venus Williams and Australian Samantha Stosur sailed into the second round of the China Open with straight set victories on Sunday.