Roger Federer (SUI) in action against Lorenzo Sonego (ITA) on the Centre court in the fourth round at All England Lawn Tennis and Croquet Club. Peter van den Berg-USA TODAY Sports

Roger Federer unlikely to play at Australian Open?

It was learned over the summer that tennis living legend Roger Federer required a third surgery on his knee, would miss the U.S. Open and would ultimately be sidelined for "many months." 

Per Reuters (h/t ESPN), coach Ivan Ljubicic has said Federer is unlikely to play in the Australian Open in January as he works to return from this latest setback. 

"I think there are very few chances, he is still recovering and knowing him, he wants to be sure he can play to win the tournament and be at 100%," Ljubicic explained during comments made to Stats Perform. 

"So I think the Australian Open is not a real possibility right now. But he will go step by step because he is 40 years old now and he needs to be patient. He cannot recover as quickly as he used to."

Federer celebrated his 40th birthday in August and remains level with Rafael Nadal and Novak Djokovic for the men's record with 20 Grand Slam titles. 

Nadal is planning on competing at the Australian Open, but Djokovic's status for that tournament is unclear. Djokovic hasn't confirmed if he's vaccinated against COVID-19, and unvaccinated players will be made to complete a 14-day quarantine inside a hotel room if they wish to play in Australia. 

Victoria's Premier Dan Andrews had said unvaccinated individuals will not be able to enter the country even for the Australian Open, but Tennis Australia is working on negotiations with the government regarding the tournament. 

More must-reads:

TODAY'S BEST
Caitlin Clark frustrated by physical WNBA play: 'I feel like I'm getting hammered'
Pelicans to defer Lakers' first-rounder to 2025
Former top-10 WR pick speaks on retirement regret, comeback try
Pistons make major front-office firing
Orioles lose two starting pitchers to season-ending surgeries
Cavaliers to interview Knicks, Heat assistants for HC opening
Cowboys RB trying out new position during OTAs
Lions sign second-round cornerback
Why Timberwolves players skipped TNT interview after Game 4
Yankees' Aaron Judge, Juan Soto make MLB history with impressive offensive numbers
Guardians designate once-vaunted outfielder for assignment
Inside source shares telling comment about Juan Soto's feelings on Mets
Bills give Olympic gold medalist chance in NFL
New kickoff rule has Chiefs considering radical, outside-the-box strategy
One rookie quarterback is showing 'elite downfield accuracy' during OTAs
Luka Doncic discusses what T-Wolves fan said to fire him up in Game 5 win
If you build it, they will come? Rays unveil stadium renderings
Mets shake up roster with set of moves
Stars standout remains uncertain for Game 5 vs. Oilers
Luka Doncic, Kyrie Irving dominate in Game 5 vs. Timberwolves, send Mavericks to NBA Finals