Novak Djokovic extended his ATP Head2Head advantage against Daniil Medvedev to 5-3 with victory in the Australian Open final.

Novak Djokovic owns a 9-0 record in Australian Open finals.

Novak Djokovic defeats Daniil Medvedev in straight sets on Sunday to capture his ninth Australian Open title.

Daniil Medvedev (right) shares a joke with Novak Djokovic after the Australian Open final on Sunday.

Novak Djokovic dominates early in each set of his Australian Open final on Sunday against Daniil Medvedev.

From 0-1, Novak Djokovic wins four straight games in the second set against Daniil Medvedev on Sunday in the Australian Open final.

Novak Djokovic plays aggressively to break Daniil Medvedev for the first set on Sunday in the Australian Open final.

Daniil Medvedev recovers from a 0-3 deficit in the first set against Novak Djokovic on Sunday in the Australian Open final.

Novak Djokovic gets off to a quick start on Sunday against Daniil Medvedev in the Australian Open final.

Ivan Dodig and Filip Polasek celebrate capturing the Australian Open doubles title on Sunday.

Filip Polasek (left) and Ivan Dodig (right) celebrate winning the Australian Open doubles titles on Sunday.

Daniil Medvedev has defeated two Top 10 players en route to the Australian Open final.

Rajeev Ram and Barbora Krejcikova capture their second Australian Open mixed doubles title in three years on Sunday.

Daniil Medvedev owns a 3-4 ATP Head2Head record against Novak Djokovic.

Daniil Medvedev is aiming to become the first Russian man to win the Australian Open since Marat Safin in 2005.

Daniil Medvedev strikes 46 winners to defeat Stefanos Tsitsipas in straight sets at the Australian Open on Friday.

Stefanos Tsitsipas is a three-time Grand Slam semi-finalist.

Daniil Medvedev is aiming to capture his first Grand Slam title at the Australian Open.

Rajeev Ram and Joe Salisbury own a 13-1 team record at the Australian Open.

Novak Djokovic celebrates reaching his ninth Australian Open final after beating Aslan Karatsev on Friday.

Novak Djokovic commits just one unforced error through 15 games of his Australian Open semi-final against Aslan Karatsev on Thursday.

World No. 1 Novak Djokovic takes on qualifier Aslan Karatsev on Friday in the Australian Open semi-finals.

Stefanos Tsitsipas claimed his first hard-court victory against Rafael Nadal at the Australian Open on Wednesday.

Rafael Nadal won the first two sets against Stefanos Tsitsipas on Wednesday, but couldn't progress to the Australian Open semi-finals.

Rafael Nadal is making his 16th appearance at the Australian Open.

Stefanos Tsitsipas owns a 10-3 record at the Australian Open.

Rafael Nadal is aiming to capture a record 21st Grand Slam title this week.

Daniil Medvedev beats his ATP Cup teammate Andrey Rublev on Wednesday for a place in the Australian Open semi-finals.

Daniil Medvedev and Andrey Rublev contest their fifth ATP Head2Head meeting on Wednesday in the Australian Open quarter-finals.

Joe Salisbury and Rajeev Ram do not face a break point on Wednesday en route to the Australian Open semi-finals.

Novak Djokovic will face Aslan Karatsev for a place in the Australian Open final.

Novak Djokovic improves to 6-2 in his ATP Head2Head series against Alexander Zverev.

Alexander Zverev is aiming to capture his maiden Grand Slam title at the Australian Open.

Novak Djokovic is aiming to capture a record-extending ninth Australian Open title.

Ivan Dodig (right) and Filip Polasek (left) own a 9-2 record this year.

Aslan Karatsev celebrates beating No. 18 seed Grigor Dimitrov on Tuesday for a place in the Australian Open semi-finals.

Aslan Karatsev becomes the first man in the Open Era to reach the semi-finals on his Grand Slam debut on Tuesday at the Australian Open.

Russia's Aslan Karatsev becomes the first man in the Open Era to reach the semi-finals on his Grand Slam debut.

Grigor Dimitrov, the No. 18 seed, had four break points for a 2-0 lead in the second set on Tuesday against Aslan Karatsev at the Australian Open.

Grigor Dimitrov takes an off-court medical timeout for a lower back injury after losing the third set against Aslan Karatsev on Tuesday at the Australian Open.

Daniil Medvedev enters the Australian Open quarter-finals on an 18-match win streak.

Jamie Murray (right) and Bruno Soares (left) will face Marcelo Arevalo and Matwe Middelkoop in the Australian Open quarter-finals.

Stefanos Tsitsipas will face Rafael Nadal in the Australian Open quarter-finals.

Novak Djokovic owns a 5-2 ATP Head2Head record against Alexander Zverev.

Rafael Nadal, the 2009 champion, finishes strongly to beat Fabio Fognini on Monday at the Australian Open.

Daniil Medvedev defeats Mackenzie McDonald in straight sets to reach his first Australian Open quarter-final.

World No. 1 Novak Djokovic hit 41 winners past Milos Raonic on Sunday for a place in the Australian Open quarter-finals.

Novak Djokovic keeps his hopes alive of lifting a ninth Australian Open crown on Sunday with victory over Milos Raonic.

Milos Raonic, the No. 14 seed, breaks Novak Djokovic at 2-2 in the second set of their Australian Open fourth-round clash on Sunday.

World No. 1 Novak Djokovic keeps Milos Raonic behind the baseline to win the first set on Sunday at the Australian Open.

Sixth seed Alexander Zverev celebrates beating Dusan Lajovic on Sunday at the Australian Open.

Third seed Dominic Thiem, who reached the 2020 Australian Open final, loses to No. 18 seed Grigor Dimitrov on Sunday.

Aslan Karatsev celebrates completing a remarkable comeback against Felix Auger-Aliassime on Sunday at the Australian Open.

Thanasi Kokkinakis and Nick Kyrgios lose to fourth seeds Wesley Koolhof and Lukasz Kubot on Sunday at the Australian Open.

Grigor Dimitrov, the No. 18 seed, beats last year's finalist Dominic Thiem on Sunday at the Australian Open.

Grigor Dimitrov, the No. 18 seed, beats last year's finalist Dominic Thiem on Sunday at the Australian Open.

Aslan Karatsev rallies from two sets down on Sunday to stun Felix Auger-Aliassime and reach his first Grand Slam quarter-final.

Felix Auger-Aliassime falls short in five sets against Aslan Karatsev on Sunday in the fourth round of the Australian Open.

Rafael Nadal will meet Fabio Fognini in the Australian Open Round of 16.

Rafael Nadal is through to the Australian Open Round of 16 for the 14th time.

Fabio Fognini will face Rafael Nadal for a place in the Australian Open quarter-finals.

Rafael Nadal strikes 27 winners to defeat Cameron Norrie in straight sets at the Australian Open on Saturday.

Thanasi Kokkinakis (right) and Nick Kyrgios (left) are making their third team appearance at the Australian Open.

Daniil Medvedev is chasing his maiden Grand Slam title at the Australian Open.

Stefanos Tsitsipas owns a 9-3 record at the Australian Open.

Andrey Rublev strikes 33 winners to beat Feliciano Lopez in straight sets at the Australian Open on Saturday.

Stefanos Tsitsipas defeats Mikael Ymer in straight sets on Saturday to take a 2-0 lead in their ATP Head2Head series.

Daniil Medvedev levels his ATP Head2Head series with Filip Krajinovic at 1-1 on Saturday with a win in the third round of the Australian Open.

Novak Djokovic owns a 78-8 record at the Australian Open.

Nick Kyrgios congratulates third seed Dominic Thiem after his third-round victory on Friday at the Australian Open.

Novak Djokovic defeats Taylor Fritz in five sets to reach the Australian Open Round of 16 on Friday.

Nick Kyrgios battles hard, but comes up narrowly short against Dominic Thiem on Friday at the Australian Open.

Third seed Dominic Thiem fights back to beat Nick Kyrgios on Friday night at the Australian Open.

Denis Shapovalov owns a 5-4 record at the Australian Open.

Felix Auger-Aliassime is through to the Australian Open Round of 16 for the first time.

Milos Raonic wins 71 per cent of net points (25/35) to defeat Marton Fucsovics in four sets at the Australian Open on Friday.

Aslan Karatsev celebrates beating eighth seed Diego Schwartzman on Friday at the Australian Open.

Cameron Norrie is through to the Australian Open third round for the first time.

Thanasi Kokkinakis was competing in the Australian Open second round for the first time since 2015.

Daniil Medvedev claims his 16th consecutive match win to reach the Australian Open third round on Thursday.

Rafael Nadal owns a 67-14 record at the Australian Open.

Rafael Nadal is chasing his second Australian Open title in Melbourne.

Daniil Medvedev celebrates his 25th birthday by beating Roberto Carballes Baena on Thursday at the Australian Open.

Fabio Fognini saves one match point to defeat countryman Salvatore Caruso in five sets at the Australian Open on Thursday.

Carlos Alcaraz, 17, lost to Mikael Ymer on Thursday in the Australian Open second round.

Robert Farah (left) and Juan Sebastian Cabal (right) save one match point on Thursday in their first match at the 2021 Australian Open.

Stefanos Tsitsipas fires 78 winners to defeat Thanasi Kokkinakis in five sets at the Australian Open on Thursday.

Thanasi Kokkinakis fights hard but falls to fifth seed Stefanos Tsitsipas on Thursday at the Australian Open.

Fifth seed Stefanos Tsitsipas beats Thanasi Kokkinakis on Thursday for a place in the Australian Open third round.

Nick Kyrgios saves two match points to reach the third round of the Australian Open.

Novak Djokovic owns a record eight Australian Open titles.

Nick Kyrgios will face 2020 runner-up Dominic Thiem in the Australian Open third round.

Ugo Humbert was aiming to reach the Australian Open third round for the first time.

Nick Kyrgios saves two match points to beat Ugo Humbert in five sets at the Australian Open.

Alexander Zverev converts four of 10 break points against Maxime Cressy on Wednesday at the Australian Open.

Second seeds Mate Pavic (volleying) and Nikola Mektic extend their winning streak on Wednesday at the Australian Open.

Stefanos and Petros Tsitsipas battle hard on Wednesday, but lose to Mackenzie McDonald and Tommy Paul at the Australian Open.

Frances Tiafoe struck 49 winners in his four-set loss to Novak Djokovic at the Australian Open on Wednesday.

Third seed Dominic Thiem cruises past Dominik Koepfer on Wednesday at the Australian Open.

Stan Wawrinka was unable to convert three match points in his five-set loss to Marton Fucsovics at the Australian Open.

Denis Shapovalov, the No. 11 seed, sweeps past Bernard Tomic on Wednesday at the Australian Open.

Novak Djokovic battles past Frances Tiafoe in four sets in their first ATP Head2Head meeting to reach the third round.

Marton Fucsovics stuns Stan Wawrinka in a thrilling five-setter on Wednesday to reach the third round of the Australian Open.

Felix Auger-Aliassime improves to 6-1 in 2021 after beating James Duckworth at the Australian Open on Wednesday.

Thanaski Kokkinakis wins his first Grand Slam match at home since 2015.

Diego Schwartzman loses just five games against Alexandre Muller on Wednesday to reach the third round of the Australian Open.

Stefanos Tsitsipas strikes 25 winners to defeat Gilles Simon in straight sets at the Australian Open on Tuesday.

Thanasi Kokkinakis will face Stefanos Tsitsipas for a place in the Australian Open third round.

Stefanos Tsitsipas is aiming to capture his maiden Grand Slam title at the Australian Open.

World No. 10 Matteo Berrettini celebrates beating Kevin Anderson on Tuesday in the Australian Open first round.

Michael Mmoh celebrates beating fellow qualifier Viktor Troicki on Tuesday night at the Australian Open.

Rafael Nadal breaks serve six times to beat Laslo Djere on Tuesday in the first round of the Australian Open.

Alex de Minaur strikes 27 winners to defeat Tennys Sandgren in straight sets at the Australian Open.

Alexei Popyrin saves four match points to defeat David Goffin in five sets at the Australian Open.

Karen Khachanov beats wild card Aleksandar Vukic on Tuesday in the Australian Open first round.

Rafael Nadal breaks serve six times to beat Laslo Djere on Tuesday in the first round of the Australian Open.

Jannik Sinner owns a 5-1 record in 2021.

Rafael Nadal is bidding to capture his second Australian Open title this year.

Jannik Sinner digs deep, but Denis Shapovalov gets the better of the Italian early Tuesday morning at the Australian Open.

Denis Shapovalov beats Jannik Sinner in an Australian Open first-round encounter that finished at 12:48am local time Tuesday morning.

Jannik Sinner, the Great Ocean River Open titlist, is locked in a fifth set against No. 11 seed Denis Shapovalov at the Australian Open on Monday.

Denis Shapovalov, the Canadian No. 11 seed, is battling Jannik Sinner in a fifth set at the Australian Open on Monday.

World No. 1 Novak Djokovic hits 41 winners past Jeremy Chardy on Monday in the Australian Open first round.

Nick Kyrgios, who completed a 46-second service hold in the second set, beats Frederico Ferreira Silva on Monday at the Australian Open.

Grigor Dimitrov owns a 25-10 record at the Australian Open.

Sixth seed Alexander Zverev works hard to beat Marcos Giron on Monday at the Australian Open.

Rafael Nadal owns a 14-1 record in first-round matches at the Australian Open.

Emil Ruusuvuori saves 17 of 23 break points he faces to beat Gael Monfils in five sets on his Australian Open debut.

Novak Djokovic owns a 75-8 record at the Australian Open.

Novak Djokovic will face Jeremy Chardy in his first-round match at the Australian Open.

Rafael Nadal, the 2009 champion, is bidding to capture a record 21st Grand Slam crown at the Australian Open.

Last year's finalist Dominic Thiem will begin his Australian Open campaign against Mikhail Kukushkin on Monday.

Carlos Alcaraz celebrates beating Hugo Dellien in Doha on Wednesday to qualify for the Australian Open.

Carlos Alcaraz overcomes a slow slow start in both sets to beat Russia’s Evgeny Karlovskiy on Tuesday in Australian Open qualifying.

Dustin Brown beats Carlos Taberner on Tuesday in Doha to move within one step of the Australian Open main draw.

Sergiy Stakhovsky is through to the Australian Open qualifying round after beating Jason Kubler in Doha on Tuesday.

Carlos Alcaraz is aiming to make his Grand Slam main draw debut at the Australian Open.

Casper Ruud fires 45 winners past Radu Albot to reach the fourth round at the Australian Open.

Aslan Karatsev reaches the Australian Open quarter-finals on his Grand Slam debut.

Fourth seeds Wesley Koolhof (left) and Lukasz Kubot (right) beat Thanasi Kokkinakis and Nick Kyrgios on Sunday at the Australian Open.

Dominic Thiem hits 41 unforced errors against Grigor Dimitrov during his fourth-round defeat at the Australian Open.

Daniil Medvedev defeats Mackenzie McDonald in straight sets to reach his first Australian Open quarter-final.

Carlos Alcaraz enjoys a winning Grand Slam debut on Day 2 at the Australian Open.

Andrey Rublev races through his Australian Open first round in straight sets.

Dominic Thiem cruises against Dominik Koepfer in straight sets to reach the third round at the 2021 Australian Open.

Stan Wawrinka starts his 2021 Australian Open campaign with a straight-set win over Pedro Sousa.

Milos Raonic fires 51 winners against Federico Coria on his way to the second round at the Australian Open.

Novak Djokovic completes a three-peat at the Australian Open for the second time in his career.

Novak Djokovic wins his ninth Norman Brookes Challenge Cup to conclude an Australian Open fortnight unlike any other.

Andrey Rublev extends his 2021 singles winning streak to six matches.

Taylor Fritz reaches the third round at the Australian Open after a five-set marathon against Reilly Opelka.

Last year's finalists Max Purcell (left) and Luke Saville fall to fellow Aussies Matthew Ebden and John-Patrick Smith (not pictured) in the second round of the Australian Open.

Jamie Murray (right) and Bruno Soares move into the third round of the Australian Open without dropping a set.

Tenth-seeded John Peers (background) and Michael Venus need two sets to reach the third round at the Australian Open.

Feliciano Lopez rallies from two sets to love against Lorenzo Sonego to reach the third round at the Australian Open.

Alexander Zverev cruises into the fourth round at the Australian Open after a victory over Adrian Mannarino.