Novak Djokovic lost his grip on the Australian Open in 2014 and is determined to triumph in Melbourne this time around despite a recent bug.
Novak Djokovic is confident in his health after overcoming illness in the build-up to the Australian Open.
The world number one is set to get his tournament under way against Slovenia's Aljaz Bedene on Tuesday.
His preparations have been far from ideal, however. A fever prompted Djokovic to withdraw from the Mubadala World Tennis Championship in Abu Dhabi, while a cancelled practice session and press conference on Saturday prompted further questions to be raised.
However, Djokovic moved to calm any fitness fears, declaring on Sunday: "I had tough couple of days. But it's all behind me now. I'm ready for the Open.
"Little bit with the flu and stomach. But I carried that already from the Middle East.
"But now it's good. It's passed."
Djokovic has four Australian Open titles to his name, three coming in succession between 2011 and 2013.
An epic five-set defeat to eventual winner Stanislas Wawrinka saw the Serb's grip on the Norman Brookes Challenge Cup slip and Djokovic is taking nothing for granted in his quest to lift the trophy for a fifth time.
"I don't think it's nice to talk about the title when the tournament hasn't started yet. There are so many players who are contenders to win," he added.
"Considering the success that I had in my career in this tournament gives me enough reason and confidence to believe I can go far.
"[But] 120 players want to prove that they deserve to be in this tournament, and they have huge motivation to win against the top players.
"So I'll take it one match at a time."