Sam Stosur will bid a bittersweet farewell to home fans at the Australian Open but will not be straying far from the game, the 38-year-old major winner said on Sunday.

Rafa Nadal will head into the Australian Open undercooked and with only one win to his name since September's U.S. Open, but it would surprise nobody if he retained the title he won for the second time last year.

Novak Djokovic may never forget his deportation from Australia over his refusal to be vaccinated against COVID, but the Serb will hope a record-extending 10th major in Melbourne provides closure to his storied career's most controversial chapter.

Novak Djokovic, Tunisian world number two Ons Jabeur and six other top players will form the first executive committee of the Professional Tennis Players Association (PTPA) as it fights for a seat at the table with the sport's governing organisations.

Australian Open spectators were warned on Wednesday that they risk being ejected if they target nine-time champion Novak Djokovic.

 Nick Kyrgios took a cheeky dig at his critics after tickets for Friday's practice match with Serb Novak Djokovic sold out in 58 minutes, proving the Australian's huge box office draw.

Novak Djokovic dug deep to save a match point on the way to a 6-7(8) 7-6(3) 6-4 victory over Sebastian Korda in the Adelaide International 1 final on Sunday ahead of this month's Australian Open.

Aryna Sabalenka fired an Australian Open warning shot Sunday by winning her first title since 2021 at the Adelaide International, beating rising Czech teenager Linda Noskova 6-3, 7-6 (7/4).

Unheralded Czech teenager Linda Noskova stunned world number two Ons Jabeur Saturday to make her first-ever final at the Adelaide International, dealing the Tunisian a demoralising blow ahead of the Australian Open.

World number five Aryna Sabalenka surged into the final of the Adelaide International Saturday, crushing Romanian veteran Irina-Camelia Begu for the loss of just five games.

US Open champion Carlos Alcaraz said on Friday he will miss the Australian Open, the first Grand Slam of the season, after injuring his right leg in training.

Sania Mirza, India's former doubles world number one, said she will call time on her career aged 36 after next month's Dubai Tennis Championships, after her 2022 retirement plans were delayed due to injury.

The International Tennis Federation Asia Under-14 Development Championship will get underway on Sunday at the Sheikh Jamal National Tennis Complex in Ramna with 34 players from 10 countries taking part in the competition.

Former world number one Daniil Medvedev set up an Adelaide International semi-final against either Novak Djokovic or Denis Shapovalov Friday with a command performance in the countdown to the opening Grand Slam of the year.

Iga Swiatek was left in tears after Jessica Pegula stunned the world number one on Friday to give the United States a 1-0 lead over Poland in the semi-finals of the inaugural United Cup.

Novak Djokovic said "it is what it is" Thursday as he faced the prospect of missing more tournaments in the United States over his refusal to have a coronavirus shot.

Former world number one Daniil Medvedev locked in an all-Russian Adelaide International quarter-final with Karen Khachanov Wednesday, while Aryna Sabalenka stormed back to book her place in the last eight.

Novak Djokovic swept to victory in his first singles match on Australian soil since being deported a year ago, crushing Constant Lestienne at the Adelaide International on Tuesday to kick-start his bid for another Grand Slam title.

World number two Rafael Nadal slumped to a second-straight defeat at the United Cup Monday in a setback to his Australian Open preparations, but Stefanos Tsitsipas and Iga Swiatek were both on song.

Tennis fans gave Novak Djokovic a raucous welcome during his first match in Australia in almost two years when he made a rare doubles appearance at the Adelaide International on Monday.