His 2017 comeback could be inspiration for the likes of Djokovic, who has won the Australian title a record six times but has been sidelined since Wimbledon with a right elbow injury.
This championship is the first of the four tournaments that make up the Grand Slam and takes place every January.
"I had a long year last year, so I had to start my preparation later than usual".
"I can't stop laughing outside and inside". It's great to get the feeling once again of playing a match. "I wanted to be back on court, unfortunately the elbow wouldn't let me last week".
Annacone believes that Federer proved the doubters wrong, after failing to win a major title for four years from 2013 before taking two in 2017: the Australian Open and Wimbledon, where he became the oldest victor in the modern era at 35.More news: 'Roseanne' star says revived show reflects Trump's America
"This has been a tough period for me, obviously injury is the greatest enemy a professional athlete can have", the Serbian added.
"I basically came here to get the answer to see if I'm ready to play or if I'm not ready to play", Wawrinka said. "It's a great start". In a women's field notably missing 23-time Grand Slam champion Serena Williams, there appear to be many chances of a new Australian Open champion this year. The fifth set was maybe the best set I ever played.
Aussie teen Destanee Aiava has been left close to tears after a straight-sets rout by former world No.5 Eugenie Bouchard in their Kooyong Classic match, saying she needs a break from tennis. Bedene has never made it out of the first round of the Australian Open, but does have five second round appearances in grand slams. His poor performances explain why he is only third favourite to win a tournament that he has dominated. "I don't think there's anybody else that you could say is a favourite other than Roger at the moment".
Federer, who won last year's final in five sets, has 2/1 odds of winning the title, according to OddsChecker.
"Even if it's not official, it was still a good test for me and a good practice so that was the most important thing".