Novak Djokovic reclaimed top spot in the ATP rankings released on Monday after winning his 22nd Grand Slam title at the Australian Open.

New Australian Open champion Novak Djokovic said on Monday he hopes to return to action in a month's time but is "not sure" how quickly his injured hamstring will heal.

Novak Djokovic won a record-extending 10th Australian Open title on Sunday despite battling an injury that would have forced most players to quit, his coach Goran Ivanisevic said, adding that the world number one kept getting "crazier and crazier".

An emotional Novak Djokovic called it “the biggest victory in my life” after beating Stefanos Tsitsipas to win a 10th Australian Open title and equal Rafael Nadal’s 22 Grand Slam crowns on Sunday.

Stefanos Tsitsipas dreamed of holding the Australian Open trophy aloft after nodding off on the eve of Sunday’s final but Novak Djokovic ended up giving the confident Greek a rude awakening.

Novak Djokovic said his win over Stefanos Tsitsipas in Sunday’s Australian Open final was the “biggest victory” of his career, as he claimed his 22nd Grand Slam title and won back the hearts of the home fans a year after being deported from the country.

Novak Djokovic, who won a record-equalling 22nd Grand Slam title on Sunday, is driven on through controversy by his determination to be the greatest ever.

An emotional Novak Djokovic beat Stefanos Tsitsipas Sunday to claim a 10th Australian Open title and equal Rafael Nadal's 22 Grand Slam crowns, a victory that returned him to world number one.

Novak Djokovic's father was absent from his son's player's box for the Australian Open final Sunday following a controversy over images of him posing with a Russian flag featuring Vladimir Putin.

New Australian Open champion Aryna Sabalenka didn't get much sleep Saturday night after a rambunctious come-from-behind victory, but you wouldn't have known it early on the morning after.

Facts and figures ahead of Sunday's Australian Open men's final (x denotes seeding):

Novak Djokovic has won all nine of his previous Australian Open finals so confidence is sky-high as he bids to equal Rafael Nadal's Grand Slam record and return to world number one.

An emotional Aryna Sabalenka said it will take a “few more days” to sink in after battling back from a set down to win a maiden Grand Slam title at the Australian Open on Saturday.

As Novak Djokovic steps on court to face Stefanos Tsitsipas in Sunday’s championship match in Melbourne, one specific statistic from his career may well put him at ease – nine Australian Open finals played, nine Australian Open finals won.

An emotional Aryna Sabalenka battled back from a set down to beat Elena Rybakina and win the Australian Open on Saturday for her first Grand Slam title.

Australian Open chief Craig Tiley on Saturday advised Novak Djokovic's family to be "really careful" of people using the tournament's global exposure as a platform for "disruptive" purposes.

Novak Djokovic stands on the brink of a record-equalling 22nd Grand Slam title and it is his determination to be the greatest ever which drives him on through the controversies.

Stefanos Tsitsipas will become Greece's first Grand Slam champion and a world number one if he wins the Australian Open final on Sunday -- he will have his father to thank if he does.

Saturday’s showdown between World No.5 Aryna Sabalenka and reigning Wimbledon champion Elena Rybakina will be a primetime showcase of power tennis. From each player’s coaching box, the view is the same, which means the margin of victory will come down to who can hold their nerve and their serve.

A rampant Novak Djokovic surged into a 10th Australian Open final Friday to close in on a record-equalling 22nd Grand Slam crown, with only Stefanos Tsitsipas now standing in his way.