World No 1 Serena Williams suffered one of the heaviest defeats of her long and illustrious career as she was humbled 6-0, 6-2 by Romanian Simona Halep at the WTA Finals on Wednesday.
He leads the men's seedings ahead of defending champ Roger Federer, with Bulgarian Grigor Dimitrov seeded third.
Summary of sports events and persons who made news on Monday
Russia loses appeal against IOC ban
Romanian Simona Halep showed the full extent of her defensive skills to beat Karolina Pliskova 6-4, 3-6, 6-3 and reach her second French Open final in Paris.
Simona Halep's brave Australian Open campaign but the exhausted Romanian hit a dead end in the final as she crumbled in a thriller against Caroline Wozniacki.
Romania's Simona Halep kicked off her campaign for a maiden WTA Finals title in emphatic fashion with a thumping 6-0, 6-3 victory over US Open champion Flavia Pennetta in the opening match of the eight-woman season-ending tournament on Sunday.
Nadal needed all his experience to keep Pouille at bay in the decider and the match looked to be heading for another tiebreak before he pounced to break Pouille's serve for the first time to go 6-5 up in the third.
Simona Halep will take over as the new number one in the WTA world rankings after progressing to the China Open final with a dominant 6-2 6-4 victory over Latvia's Jelena Ostapenko in Beijing on Saturday.
Images from Sunday's action at the Australian Open.
Third seed Simona Halep made the most of the Centre Court stage gifted to her in a scheduling change, disposing of her Brazilian opponent Teliana Pereira 6-2, 6-2 in a clinical display on Tuesday.
Simona Halep crushed Agnieszka Radwanska 6-2, 6-2 on Saturday to join Serena Williams in the championship decider at the WTA Finals.
Germany's Angelique Kerber breezed past American Madison Keys in straight sets to enter the Australian Open semi-finals in Melbourne on Wednesday. The 2016 champion easily won 6-1, 6-2 in just 51 minutes.
World No 1 Serena Williams comfortably beat 15-year-old CiCi Bellis.
Milos Raonic, the finalist at Wimbledon this year, and women's world number five Simona Halep of Romania have pulled out from next month's Rio Olympics due to fears over the Zika virus.
Spain's Rafael Nadal was at his dominant best against Pablo Carreno Busta on Saturday, brushing aside his compatriot 6-1, 6-2, 6-4 to move into the fourth round at the Australian Open. Images from Day 6 of the Australian Open at Melbourne Park on Saturday.
Small details can be cruelly decisive in big matches as Simona Halep discovered after losing her composure following an umpire's call in Saturday's French Open final against Maria Sharapova.
Images from Day 6 of the Australian Open in Melbourne on Saturday.
Images from the matches played on Day eight of the 2018 Australian Open at Melbourne Park on Monday
Images from Day 8 of the Australian Open in Melbourne on Monday.
Dominika Cibulkova marched into her second career Grand Slam semi-final with an impressive 6-3, 6-0 demolition of 11th seed Simona Halep at the Australian Open.
Earlier on Wednesday, Czech Karolina Pliskova was forced to withdraw from the tournament due to a viral illness.
A summary of Thursday's play at the US Open.
Angelique Kerber displayed her grit and vaunted fitness as she battled back to beat France's Pauline Parmentier 7-5, 3-6, 7-5 in scorching heat on Monday to reach the fourth round of the BNP Paribas Open.
Sharapova, making her return to top-flight tennis after serving a doping ban, defeated Romanian Halep 6-4, 4-6, 6-3 to move into the 2nd round of the final major of the year.
Photos from the matches played at the Miami Open on Tuesday
World number two Simona Halep beat Maria Sharapova 6-2, 6-2 in the China Open third round on Wednesday for her first win over the Russian in eight attempts.
The Canadian's win sets up a semi-final clash with Del Potro on Saturday that will pit power against power.
ATP says 'no evidence' against Harrison's racist remarks
Swiss second seed Stan Wawrinka advanced into the semi-finals at the Rogers Cup with a comprehensive 6-1, 6-3 victory over big-serving South African Kevin Anderson at the Aviva Centre in Toronto on Friday.
Cilic's booming serve lacked its usual accuracy and Germany's Kohlschreiber was able to control long rallies, pushing the towering Croatian around the court with pinpoint groundstrokes en route to a quick victory.
Round-up of the Rolland Garros tournament being played in Paris.
A relieved Rafael Nadal felt the confidence come flooding back in a first-round romp at the Australian Open on Monday.
India's Rohan Bopanna and his Romanian partner Florin Mergea entered the Sydney International final after a straight sets win over Thomaz Bellucci and Leonardo Mayer, on Friday.
Summary of sports events and persons who made news on Wednesday
Serena Williams brushed off some serving troubles before cruising to a 6-4, 6-3 win over Elina Svitolina on Saturday and will meet Simona Halep in the Western & Southern Open final.
Photos from French Open matches played at the Roland Garros on Friday
Karolina Pliskova lost her cool over a line call and bashed a hole into the umpire's chair with her racket after suffering a 3-6, 6-3, 7-5 defeat by Maria Sakkari in the Italian Open second round on Wednesday.
PHOTOS from day seven of the Wimbledon championships at the All England Lawn Tennis and Croquet Club in London on Monday
The sixth seed burnt the midnight oil in her all-Czech fourth round grudge match against Barbara Strycova, finally clinching a 6-7, 6-3, 6-2 victory at 1.35 a.m. local time on Tuesday morning.