It was the first Grand Slam triumph for Polasek, 35, who came out of retirement in 2018
Images from all the action on Day 4 of the Australian Open in Melbourne on Thursday
Kyrgios and Kokkinakis, nicknamed the 'Special Ks' as juniors, claimed their first major title
Murray has struggled to regain form since undergoing hip surgery last January, and was quickly dismantled by the six-time Australian Open champion at Margaret Court Arena before the players called time on their match after less than an hour.
Nadal fought from two sets down to defeat Medvedev in a five-set thriller at Rod Laver Arena.
Zverev has not lost to Wawrinka in two previous meetings but is not taking the 2014 Melbourne Park champion lightly.
Awesome images from the world of Sport 2018.
Sydney Sixers on Monday confirmed the signing of Shafali Verma and Radha Yadav for the upcoming Women's Big Bash League (WBBL).
Tennis star Novak Djokovic's bid to win a record-breaking 21 men's Grand Slam titles at the Australian Open ended on Sunday with a court decision to uphold the government's cancellation of his visa.
Daniil Medvedev fired Russia into the final of the ATP Cup on Saturday with a tense 3-6, 6-3, 7-5 win over an injury-hampered Alexander Zverev after the German destroyed a racket in frustration over a lost service break.
Rafael Nadal beat new world number one Daniil Medvedev 6-3, 6-3 in a rematch of their Australian Open clash to storm into the final of the ATP 500 event in Acapulco on Friday.
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.
Penpix of the top men's contenders at the 2021 Australian Open
Rafael Nadal shrugged off his derailed bid for the Grand Slam record with a pledge to keep "fighting" but the Spaniard leaves the Australian Open with familiar regrets after bowing out to a rising talent on Wednesday.
The Czech was a player transformed after a medical timeout in the second set and rallied to secure a place in her first Grand Slam semi-final, where she will meet the winner of the clash between Americans Jennifer Brady and Jessica Pegula.
'I feel honoured. I feel lucky to achieve one more very special thing in my tennis career. I don't care much if I am the one or not the one or the best of the history. For me, it's about enjoying nights like today. That means everything for me.'
Images from Saturday's action at the Australian Open.
Novak Djokovic will spend Saturday night in immigration detention before the world's tennis number one seeks a court ruling to stop his deportation and keep alive his bid for a record 21st major title at the Australian Open.
Aussie Millman loves the support that he gets in Melbourne.
'I think the next process for me, if I do get a chance in the Test arena, is to try and play more back-to-back cricket now'
In a rematch of their tumultuous 2018 US Open decider, Osaka underlined her status as the new queen of women's tennis and soaked up the cheers from the Rod Laver Arena crowd as fans returned to the Grand Slam after a five-day lockdown.
Usman Khawaja celebrated his recall to the Test arena after two years in the wilderness with a stylish 137 to drive Australia to a declaration on 416 for eight shortly before the close of play on the second day of the fourth Ashes Test on Thursday.
Images from Tuesday's action at the Australian Open.
Nadal said his back was still bothering him against world number 56 Djere
Defending champion and world number one Novak Djokovic won his third-straight Australian Open crown, his ninth in total.
Simona Halep finds the prospect of 14 days of quarantine ahead of the Australian Open daunting
Images from Day 1 at the Australian Open.
Novak Djokovic kicked off his season in style with a 7-5, 7-5 win over Canadian talent Denis Shapovalov on his favourite Rod Laver Arena court on Tuesday before returning to lead Serbia to a doubles victory that sealed their ATP Cup opener 2-1.
Images from Monday's action at the Australian Open.
A round-up of all tennis action on Saturday.
India will not face arch-rivals Pakistan in the group stages with both teams placed in separate groups.
Andy Murray embarks on his first Grand Slam campaign as world number one with much stronger title credentials, even if he has lost five finals at Melbourne Park.
Former champion Stan Wawrinka battled past Russian fourth seed Daniil Medvedev in five sets to reach the Australian Open quarter-finals with a 6-2, 2-6, 4-6, 7-6(2), 6-2 victory. Fifth seed Dominic Thiem kept his flawless record against Gael Monfils intact with a trouble-free 6-2, 6-4, 6-4 victory on Monday to reach his maiden Australian Open quarter-final.
The 28-year-old said beating American great Williams was the finest win of her career, outstripping her upset of world number one Ash Barty at last year's US Open.
IMAGES from Australian Open matches played at Melbourne Park on Friday
Local hope Nick Kyrgios has been elevated to the Rod Laver Arena for his meeting with childhood hero Jo-Wilfried Tsonga at the Australian Open on Friday, when Melbourne Park is again expected to swelter.
Simona Halep begins her Australian Open campaign against Kaia Kanepi on Tuesday in a rematch of their U.S. Open meeting which the world number one lost in straights sets.
A win for Djokovic would move him past Pete Sampras (14) to outright third on the list of Grand Slam title winners.
Serena Williams again wore her distinctive single-legged leotard for her second match at the Australian Open on Wednesday, and said the light material was perfect for the warmer conditions if a little too sheer to wear by itself.
Six times a men's singles champion Down Under, the Serbian will be joined in making a return at MelbournePark by 2008 women's champion Maria Sharapova, who missed last year's tournament because of a doping ban.
