Serbian Dusan Lajovic beat Andy Murray at the Miami Open on Wednesday, sending the Briton packing in the first round with his first hardcourt win of the season.
In an exciting back-and-forth rubber lasting three hours 45 minutes, Siniakova held off the 19-year-old Fed Cup debutante to give the Czechs a 3-0 win in the final against a United States team who were the defending champions but were missing their top players.
The unseeded Indo-Canadian pair defeated their fancied rivals 6-3, 3-6, 10-5 in a round of 16 tie of the ATP Masters 1000 event.
Big-serving Isner reaches Montreal second round
Holger Rune crashed out to Yoshihito Nishioka in the ATP 250 Adelaide International 1 first round.
Images from matches played on Day 4 at the US Open at the Flushing Meadows in New York on Thursday.
Raducanu stormed into the third round of the Cincinnati Open
It was a poor day for former women's Grand Slam champions with Canada's Bianca Andreescu becoming the highest women's seed to fall at the French Open so far, losing a three-hour marathon against Tamara Zidansek.
Facing the prospect of empty stands at the first fanless Grand Slam since the coronavirus outbreak, top contenders at this year's US Open admit that the unprecedented new hush will take some getting used to.
* Swiatek started playing tennis in an attempt to emulate her older sister, who competed briefly on the junior circuit.
Images from Day 5 of the French Open, at Roland Garros, in Paris.
The United States survived a fright from little Latvia on Saturday before winning 3-2 in a Fed Cup qualifier as Serena Williams suffered her first career singles loss in the team event. Switzerland, Spain, Belgium, Slovakia, Germany, Russia and Belarus also moved through to the inaugural 12-nation showdown in Budapest.
Kenin, Andreescu to be part of team event in Charleston in June
Images from Day 7 of the 2021 French Open at Roland Garros in Paris on Saturday.
Frances Tiafoe will be unable to compete for the Washington Kastles in the 2020 World TeamTennis season after testing positive for COVID-19 during the advance travel testing window, tournament chief Carlos Silva said on Monday. Tiafoe, 22, returned a positive test on Friday and was forced to withdraw from the All-American Team Cup exhibition tournament in Atlanta.
World number one Ash Barty delighted the Memorial Drive crowd by breezing through to the Adelaide International semi-finals with a comfortable 6-3, 6-4 victory over Sofia Kenin on Friday.
Images from the action on Day 2 at the Australian Open.
Homeland favorite Ashleigh Barty and Serbia's Novak Djokovic are the top seeds for the upcoming Australian Open.
World Number one Simona Halep and Japan's Naomi Osaka are among the players nominated for the Women's Tennis Association (WTA) Player of the Year award.
Three-times winner Serena Williams moved into the Toronto Open second round after beating Spain's Nuria Parrizas Diaz on Monday
Novak Djokovic wore down Lucas Pouille after an even first set, dispatching the Frenchman 7-6(2), 6-1 in a Cincinnati Masters quarter-final in Ohio on Friday.
Ash Barty ended Australia's 44-year wait for a home winner at the Australian Open when the world number one staved off a fightback from American Danielle Collins to complete a 6-3, 7-6(2) win.
The professional tennis circuit, which requires players to jet around the world, was forced into shutdown in early March as countries went into lockdown and closed their borders to contain the spread of the novel coronavirus.
IMAGES from Day 6 of the matches played at the US Open at Flushing Meadows on Saturday.
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.
Barty is primed to become the first local since Chris O'Neil in 1978 to win the Australian Open.
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.
The circuit agreed last year an extension to cover this year's race, which was held in August and without spectators due to the COVID-19 pandemic, after fears it would drop off the calendar.
Images from Day 5 of the 2021 French Open, in Paris, on Thursday.
Images from Day 9 of the 2020 French Open at Roland Garros, in Paris, on Monday.
This year's Australian Open will be allowed to admit up to 30,000 fans a day, around 50% of usual capacity, amid the COVID-19 pandemic.
Emma Raducanu says she is not worried about her poor form and will play without pressure at the Australian Open.
Sumit Nagal immediately set his sights on Thiem who has reached two French Open finals, losing both to Nadal.
World number one Ash Barty became the first Australian woman to win the Wimbledon singles title for 41 years on Saturday when she defeated Czech Karolina Pliskova in the final.
Brady saw four match points slip through her fingers as she served it out nervously but finally celebrated the win when Muchova fired a forehand long.
A summary of Wednesday's action at the US Open.
Playing in his first competitive singles match on the ATP Tour since August 5, the 20-times Grand Slam champion showed no signs of rust in his second round win against Lithuanian qualifier Ricardas Berankis.
Novak Djokovic was eliminated from the Grand Slam after inadvertently hitting a ball into a line judge's throat during his fourth round match on the Arthur Ashe Stadium court.
World TeamTennis, an innovative mixed-gender professional tennis league, will start from July 5 at the Greenbrier, West Virginia, and up to 500 fans will be allowed to attend matches during its three-week season, tournament organisers said on Tuesday. WTT said it would adhere to all health and safety protocols required by authorities to ensure the well-being of its players, coaches and essential staff amid the COVID-19 pandemic.
Images from Day 3 of the 2022 Australian Open in Melbourne on Wednesday.