Six-time former champion Novak Djokovic celebrates beating Daniil Medvedev in the early hours of Tuesday morning at the Australian Open.

Six-time former champion Novak Djokovic battles Daniil Medvedev in a Tuesday morning finish at the Australian Open.

Denis Shapovalov falls short in four sets against World No. 1 Novak Djokovic at the Australian Open.

Novak Djokovic loses his first set of the Australian Open, but goes on to defeat Denis Shapovalov in four sets.

Novak Djokovic is going for his seventh Australian Open title this fortnight.

Novak Djokovic converts five of his nine break points to beat Jo-Wilfried Tsonga on Thursday in a repeat of the 2008 Australian Open final.

World No. 1 Novak Djokovic opens his campaign for a seventh Australian Open crown against Mitchel Krueger on Tuesday night.

Novak Djokovic will meet Mitchell Krueger in the first round at the Australian Open.

Novak Djokovic will face a qualifier in his Australian Open first-round match.

Six-time former champion Novak Djokovic and five-time runner-up Andy Murray both trained together on Thursday ahead of the Australian Open.

Novak Djokovic will go for a record-breaking seventh Australian Open title this month.

Novak Djokovic, who lost to Roberto Bautista Agut in the Doha semi-finals, has won 29 of his past 32 matches.

Novak Djokovic and Marko Djokovic fall short of their first doubles final as a team.

Novak Djokovic breaks Nikoloz Basilashvili four times to beat the Georgian on Thursday in Doha.

Novak Djokovic extends his winning streak in Doha to 13 with a victory against Nikoloz Basilashvili.

Novak Djokovic is aiming to lift his third Qatar ExxonMobil Open title this week.

Novak Djokovic does not face break point in his 55-minute first-round victory in Doha.

Novak Djokovic drops just three games en route to his first victory of 2019.

Marko Djokovic and Novak Djokovic reach the Qatar ExxonMobil Open quarter-finals.

Novak Djokovic, Dominic Thiem, Stan Wawrinka and Karen Khachanov wear traditional Qatari men's attire while walking the Katara Beach on Sunday.

Novak Djokovic falls short of tying Roger Federer's record of six Nitto ATP Finals titles.

Alexander Zverev seeks the biggest title of his career in the Nitto ATP Finals championship against five-time winner Novak Djokovic.

Novak Djokovic is pursuing his sixth title at the Nitto ATP Finals.

Novak Djokovic beats Marin Cilic in straight sets for the first time in four tries in 2018.

Novak Djokovic finishes round-robin play at the Nitto ATP Finals undefeated for the fifth time with a win against Marin Cilic.