Kei Nishikori swept aside Rafael Nadal in the quarter-finals of the Rogers Cup.
The Romanian broke Williams's serve in the first game but that was the only one she managed for the rest of the opening set as the American bulldozed her way through the set in 20 minutes, serving it out with an ace.
Spain's Garbine Muguruza beat Serena Williams 7-5, 6-4 to win the French Open on Saturday and claim her first Grand Sam title. Take a look at the career of the 22-year-old.
The Royal Box was packed with stars from the world of cricket, football, athletics and tennis. Take a look...
In his pre-tournament news conference in Toronto on Sunday, Nadal said a recurring foot issue he has been dealing with since 2005 returned at the French Open, where he fell to eventual champion Djokovic in the semi-finals.
Sania Mirza will take on Venus Williams in the opening singles match at the Watson Water Champions Challenge.
Serena Williams crashed out of the US Open after losing in the semi-final to Karolina Pliskova costing her a shot at a 23rd Grand Slam title and resulted in her losing her record 187th straight week at number one.
Agnieszka Radwanska continued her pre-Wimbledon tune-up by reaching the final of Eastbourne grasscourt tournament with a 6-1, 6-7(3), 6-2 win over America's Sloane Stephens on Friday.
Venus Williams also went the distance before claiming a 2-6, 6-3, 6-3 victory over Croatia's Donna Vekic.
US Open aces Wimbledon for top Grand Slam prize money.
IMAGES from Day 2 of the US Open played at Flushing Meadows in New York on Tuesday.
It is unlikely that Alize Cornet will ever forget the moment she watched Serena Williams come charging towards the net - only to whip a backhand straight into the barrier.
The 32-year-old three-time Grand Slam champion has not played singles since losing in the Australian Open first round in January.
Serena Williams sounded a warning for her fellow Australian Open contenders with a sleek win
Naomi Osaka has sacked her second coach in seven months, splitting with Jermaine Jenkins
The 37-year-old has enjoyed a renaissance season that has seen her reach the Australian Open and Wimbledon finals and sit just one victory away, against American compatriot Sloane Stephens, from playing for the US Open title for the first time since 2002.
American Serena Williams reached the semi-finals at the WTA Tour Championships in Istanbul on Thursday with what is fast becoming a routine defeat of World No 1 Victoria Azarenka.
'She wants to come back in 2018 and defend her title and she's in training now'
'If grunting would win titles then everybody in the world would be grunting as loud as they can be.'
Roger Federer won a record-equalling seventh Wimbledon title and 17th Grand Slam crown Sunday, shattering tearful Andy Murray's dream of ending Britain's 76-year wait for an All England Club men's champion.
"Unfortunately I am no longer able to train and play the way I used to, and recently my body can't live up to my expectations," Radwanska, 29, said in a post on Facebook.
The Serbian second seed's match against France's Adrian Mannarino was delayed because of the epic five-setter between Gilles Muller and Rafael Nadal.
Top seed Serena Williams overcame a week fighting jet-lag to beat fellow American Coco Vandeweghe 7-5, 6-3 to retain the Stanford Classic title on Sunday.
Sluggish Serena Williams struggled through her jet lag to complete a 6-2, 6-1 victory over collegiate champion Nicole Gibbs in the second round of the Stanford Classic on Wednesday.
Garbine Muguruza swapped her rackets for crampons and headed to Tanzania with a friend to climb 5,895 metre (19,340 feet) Mount Kilimanjaro, a five-day expedition in which she scaled
Serena Williams squandered four match points and blew a 5-1 lead in the decider to fall to seventh seed Karolina Pliskova 6-4 4-6 7-5 in the quarter-finals of the Australian Open.
Raonic advances, Sock ousted in Rogers Cup
A year after Serena Williams and Naomi Osaka were both caught up in a whirlwind of conflicting emotions, both will be trying to make history in the US Open final on Saturday.
July is a month that will forever bind Romania's two most famous sportswomen because it was in July 1976 that Comaneci became the first gymnast to score a perfect 10 at the Olympics.
Serena Williams once featured among Heather Watson's bedroom posters but after the Briton almost ran her idol out of Wimbledon.
Defending champion Rafael Nadal progressed to the second round of the US Open after fellow Spaniard David Ferrer retired midway through the second set due to a calf injury.
Naomi Osaka settled her nerves and stepped up her preparations for the Australian Open by beating Alize Cornet 6-2, 6-2 to reach the last 16 of the Gippsland Trophy warm-up tournament in Melbourne on Tuesday.
It was Kristyna's first win over a top-five ranked player and she will go on to play fellow Czech Barbora Strycova in the quarter-finals.
Comeback queen Serena Williams crushed Germany's Sabine Lisicki 6-1, 6-2 to move into the final of the Stanford Classic on Saturday.
Becoming the WTA number one in the world is a dream come true'
List of leading women's grand slam singles title winners in the professional era after Serena Williams surpassed Steffi Graf by winning the Australian Open on Saturday.
But matches between Venus and Serena are captivating, highly charged yet often disappointing affairs.
German Sabine Lisicki sent another seismic shockwave through Wimbledon on Monday when she sent five-times champion Serena Williams packing in fourth round, while Li Na and Petra Kvitova advanced to the quarter-finals.
Serena Williams has withdrawn from next week's Stanford Classic due to a thumb injury, organisers said on Thursday.
Form guide for American Serena Williams ahead of Thursday's US Open semi-final clash against Latvia's Anastasija Sevastova: