The Australian Open at Melbourne Park is the first tennis grand slam of the season and runs from January 20 to February 2. For the first time since 2006, 23-time grand slam winner Serena Williams failed to pass the third round in the tournament. In men's singles, Novak Dojokovic faced Dominic Thiem in the final.

Djokovic holds up the Norman Brooks Challenge Cup trophy.
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Austria's Dominic Thiem plays a shot back between his legs to Djokovic.
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Djokovic makes a backhand return.
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At 21, Sofia Kenin of the United States became the youngest women's champion at the Australian Open since Maria Sharapova in 2008. Kenin defeated Spain's Garbine Muguruza in the women's final on February 1.
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France's Harold Mayot reacts to winning the championship point in the junior boys' singles final against France's Arthur Cazaux.
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Britain's Jamie Murray makes a backhand return alongside his partner Bethanie Mattek-Sands of the United States during their mixed doubles final match against Barbora Krejcikova of the Czech Republic and Croatia's Nikola Mektic.
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Australia's Dylan Alcott defeated Great Britain's Andy Lapthorne in the quad wheelchair singles final.
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Andorra's Victoria Jimenez Kasintseva reacts after beating Poland's Weronika Baszak in the junior girls' singles final on February 1.
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Novak Djokovic celebrates winning the second set against Roger Federer on his way to reaching an eighth Australian Open final on January 30.
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As always, there was a lot of love for Swiss star Roger Federer in the crowd.
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Sofia Kenin reached her first grand slam final by defeating home hero Ashleigh Barty in the semifinals.
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Dominic Thiem hits a serves during his quarterfinal clash against Rafael Nadal on January 29. Thiem defeated the 2009 champion in four sets.
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Roger Federer makes a forehand against Tennys Sandgren during their quarterfinal on January 28. Federer saved seven match points in an epic encounter on Rod Laver Arena.
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Petra Kvitova plays a backhand against Australian Ashleigh Barty. After a tight first set, Barty triumphed 7-6 6-2 to reach the semifinals.
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Australian Nick Kyrgios celebrates beating Karen Khachanov in the third round of the Australian Open on January 25.
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Czech Republic's Karolina Pliskova is seen in action against Anastasia Pavlyuchenkova.
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Angelique Kerber, a champion in Melbourne in 2016, takes on Italy's Camila Giorgi.
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Rafael Nadal hits a serve against fellow Spaniard Pablo Carreno Busta during their singles match-up, which Nadal won.
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Teenager Coco Gauff celebrates after victory against world No. 3 Naomi Osaka during the third round of the Australian Open on January 24.
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Milos Raonic prepares to serve in his third round match against Greece's Stefanos Tsitsipas.
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Qiang Wang returns a ball from Serena Williams during Day Five of the Australian Open. Wang eliminated 23-time Grand Slam winner Serena Williams from the Australian Open in three sets on Friday.
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Williams' loss marks the first time she has failed to advance past the third round at Melbourne Park since 2006.
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Dominic Thiem had to work hard to see off Australian wildcard Alex Bolt. The world No. 5 eventually prevailed 6-2 5-7 6-7 6-1 6-2 in their second round clash on January 23.
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Alexander Zverev has never progressed past the quarterfinals of a grand slam. He lines up a backhand against Egor Gerasimov en route to the third round.
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High summer temperatures mean the Australian Open is energy-sapping work. France's Alize Cornet rests in between games against Donna Vekic, who won 6-4 6-2.
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Japan's Yuichi Sugita prepares to serve against Andrey Rublev on day four of the tournament.
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Staff attempt to clean dirt off Melbourne Park's outside courts brought down by rainfall, which caused play to be delayed.
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Australia's John Millman signs autographs for fans after defeating Hubert Hurkacz. With the victory, Millman set up a third-round clash with Roger Federer, who he defeated at the US Open in 2018.
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Worth a try? Novak Djokovic launches his racket as he attempts to return a shot against Japan's Tatsuma Ito.
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Three-time grand slam champion Angelique Kerber, who lifted the title in Melbourne in 2016, takes on Elisabetta Cocciaretto in the first round on January 21.
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Czech Republic's Petra Kvitova plays a backhand in her second round match against Paula Badosa. A finalist here last year, Kvitova is bidding for her first major title since 2014.
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Australian Nick Kyrgios salutes the home crowd after defeating Lorenzo Sonego. Kyrgios has spearheaded tennis' relief efforts for the bushfires which have raged across the country for several months.
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Nice shot! Russia's Daria Kasatkina is captured in action against Madison Keys.
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Latvia's Ernests Gulbis plays a forehand against Felix Auger-Aliassime of Canada during the first round of the tournament. Gulbis won in four sets.
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Rafael Nadal arrives in Melbourne as the top-ranked player in the men's game. He has won just one of his 19 grand slam titles here, back in 2009.
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Croatia's Donna Vekic lets out a victory roar after defeating Maria Sharapova in the first round. Sharapova, who was granted wildcard entry for the tournament, fell to her third consecutive first round defeat at a grand slam.
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World No. 15 Stan Wawrinka, who won one of his three major titles in Melbourne in 2014, tees up a serve against Damir Dzumhur.
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Defending champion Novak Djokovic holds the best record at the Australian Open in the men's game. He got his title defense underway with victory over Germany's Jan-Lennard Struff.
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A packed Rod Laver Arena looks on as Roger Federer gets his campaign underway against Steve Johnson. Federer has won here six times -- one fewer than Djokovic.
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Former world No. 1 Caroline Wozniacki will play her final tournament at the Australian Open before hanging up her racket. The Dane was victorious here in 2018.
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Anyone for doubles? Grigor Dimitrov plays a forehand against Argentina's Juan Ignacio Londero.
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It was a case of new year, same result for Venus Williams, who fell to 15-year-old compatriot Coco Gauff in the first round, just as she did at Wimbledon last year.
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Smoke from Australia's bushfires caused havoc before the tournament, disrupting practice and qualifying and forcing Slovenian player Dalila Jakupovic to retire from a match with breathing difficulties.
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