Djokovic won his first Grand Slam title here, in 2008, and since then, he has added five more in Melbourne to stand alongside Federer and Roy Emerson as six-time champions.
Murray has won three Grand Slam titles, having reached a major final eleven times.
The three-time grand slam victor has confirmed next week's Australian Open could be his last tournament as the pain becomes too much, and even in a best-case scenario he will only go on as far as Wimbledon.
He has never got beyond the third round in Melbourne and faces Slovenia's Aljaz Bedene in his opener on Tuesday.
"Of course, it hits us top guys hard because we know Andy very well", the world number three said of the three-time Grand Slam champion and double Olympic gold medal victor. He's targeting retirement at Wimbledon. "It just maybe looks that way". So now I have just to put my head down and to go and work.
"Now I know how to manage better if that happens again".
Corretja described Murray's style as something of a throwback, saying he may have lacked the explosive power of some of the modern generation but knew how to outwit opponents, agreeing with former U.S. Open champion Andy Roddick that he was unrivalled as a tactician. "We like him. He's a good guy, Hall of Famer, legend", Federer said.
Murray is hoping to able to go out on home soil at Wimbledon in the summer but conceded Monday's match against Roberto Bautista Agut in the first round in Melbourne could be his last. At 31, top-ranked Djokovic is at Melbourne Park also trying to win a seventh Australian title.
"I know that will be hard".
"I have good feelings in terms of the surgery".
"I think his injury of the hip is something certainly far worse than mine, my injury because it's obviously something that he's been carrying for a while, for a couple of years".
"I've had some tough ones against him in the past".
Wozniacki has the first of the night matches on Rod Laver against Alison Van Uytvanck after a day session on the main stadium that features Maria Sharapova, Nadal and No 2-ranked Angelique Kerber.
"I don't think I should because I think that would be a mistake".
"To be here as the defending champion, I'm just taking it as a nice, fun challenge". "I couldn't believe he actually played. I feel like I'm hitting the ball well", she said. World No.1 Simona Halep, who had to settle for the second position in the last year's edition of the tournament, will also look to announce her return following her troubles with the recent injuries.
Zverev, 21, starts the Australian Open full of confidence after an impressive warm-up to reach the final of Perth's mixed teams Hopman Cup, despite his awful record at Grand Slams.
Serena Williams is ready to win her first Grand Slam title as a mother, having arrived at the Australian Open in her best condition since coming back from maternity leave, according to her coach Patrick Mouratoglou.