Serena Williams was sent spinning out of the Western and Southern Open by Maria Sakkari on Tuesday after the Greek rallied from a set down to beat the 23-times Grand Slam champion 5-7, 7-6(5), 6-1 and reach the quarter-finals.
IMAGES from Day 2 of the US Open played at Flushing Meadows in New York on Tuesday.
Images from Day 4 of the Australian Open in Melbourne on Thursday.
Kyrgios added that he had been in communication with Tennis Australia chief executive Craig Tiley and United Cup tournament director Stephen Farrow about his injury.
Five-time Grand Slam champion Sharapova cut a forlorn figure in the post-match press conference as she was questioned about her injury problems.
The positive cases were recorded after the charter flight from Los Angeles landed in Melbourne for the tennis Grand Slam, according to online posts from players.
A summary of Saturday's action at the US Open.
Roger Federer boasted of his fitness, Maria Sharapova felt a bit rusty and Andy Murray berated himself but all three eased into the second week of the Australian Open with third round victories at Melbourne Park on Saturday.
'I knew I was the underdog and I was just enjoying it'
Serena Williams wasted no time in sweeping aside big-serving Hungarian Timea Babos.
Millman, ranked 80 places above world number 14 Pouille, needed 73 minutes to clinch a 6-3, 6-4 victory and the best win of his career by ranking position.
IMAGES from Day 8 of the matches played at the US Open at Flushing Meadows on Monday
The Czech Republic further established themselves as the dominant force in women's team tennis as they claimed a 3-2 comeback win against hosts France to capture their fifth Fed Cup title in six years on Sunday, and 10th overall. Karolina Pliskova and Barbora Strycova downed Kristina Mladenovic and Caroline Garcia 7-5 7-5 in the doubles to hand the visitors the decisive point. The nation won five titles as Czechoslovakia in the 1970s and 80s before dominating the women's team competition in recent years.
Rafael Nadal was made to wait before his second-round Rogers Cup match due to several rain delays but did his part to put the schedule back on track with a speedy 6-2 6-3 win over Frenchman Benoit Paire on Wednesday.
Serena Williams said she did not know her coach was giving her instructions and had "never cheated in her life" after her hopes of winning a 24th Grand Slam title ended in extraordinary scenes at the US Open on Saturday.
Aryna Sabalenka of Belarus and Paula Badosa of Spain, earned second-round wins
American No 1 John Isner wants injured players to be compensated with first round prize money at Grand Slam to lower the number of early withdrawals.
Roger Federer avoided any more security scares as he moved smoothly into the third round of the French Open on Wednesday but danger still lurks in the bottom half of the draw, namely in the shape of Japan's Kei Nishikori.
Images from the matches played on Day 7 at the Roland Garros on Saturday
Former world number one Venus Williams produced a vintage display to outclass Netherlands' Arantxa Rus in straight sets and storm into the second round of the Yarra Valley Classic.
Caroline Wozniacki talked on Sunday of her horror and sadness at the shootings in Denmark.
Holder Serena Williams survived her toughest challenge yet at this year's French Open as she battled into the fourth round with a 6-4, 7-6(10) win over Frenchwoman Kristina Mladenovic in a rain-disrupted match on Saturday.
Former golden girl Eugenie Bouchard's hopes of rehabilitation at the Australian Open came to a swift end on Wednesday as wily Agnieszka Radwanska sent the Canadian spinning out of the tournament with a 6-4, 6-2 defeat in the second round.
Serena Williams has defeated her compatriot in four straight matches since a defeat in the quarter-finals of the 2013 Australian Open.
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.
Summary of sports events and persons who made news on Friday
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.
Top seed Serena Williams dropped the second set before bouncing back to beat compatriot Christina Mchale 6-3, 5-7, 6-2 in second-round action at the Miami Open in Florida on Thursday.
Images from Day 5 of the French Open in Paris on Thursday.
Images from Day 4 of the Australian Open in Melbourne on Thursday
World No 1s Andy Murray and Angelique Kerber have been named top seeds for the first major of the season, Australian Open, which will commences on January 16.
Novak Djokovic and Serena Williams are top seeds at the major starting Monday
Issues of sexism, officiating double standards and adverse playing conditions have dominated the 50th anniversary of the U.S. Open, raising uncomfortable questions and prompting authorities to promise a review of existing policies.
Images from Day 8 of Wimbledon 2022 at the All England Lawn Tennis and Croquet Club in London, on Monday.
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.
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.
Twelve months on from making the most bizarre of exits from Wimbledon, drama queen Serena Williams will be back at the All England Club next week eager to complete the "Serena Slam".
World number one Naomi Osaka was beaten in her opening match at the Dubai Duty Free Tennis Championships on Tuesday, losing to France's Kristina Mladenovic 6-3, 6-3 on her return to competitive action after winning last month's Australian Open.
Australian Open organisers have tweaked their 'Extreme Heat Policy' for next year's tournament after being accused of forcing players to perform in "inhuman" conditions during a heatwave in January.
Mumbai Tennis Masters overcame Punjab Marshalls 29-20 in the inconsequential final North Zone round robin match of the Champions Tennis League at the Kalina University Sports Complex on Monday.