As Novak Djokovic prepares to begin the defence of his Australian Open title, we take a look at a selection of Opta facts relating to the men's singles.
- In claiming his fifth men's singles crown at Melbourne Park in 2015, following previous wins in 2008, 2011, 2012 and 2013, Djokovic set a new record in the Open Era. He will now aim to equal the six wins achieved by Roy Emerson as an amateur.
- Djokovic participated in the longest grand slam final in 2012 when he beat Rafael Nadal in a match lasting five hours and 53 minutes to secure a third Australian Open.
- Last year's Australian Open was the first since 2003 in which neither Roger Federer nor Nadal managed to reach the semi-finals.
- Federer needs three more wins to reach 300 grand slam victories in his career, while Nadal requires two to hit 200.
- Federer has lost only two games against an unseeded opponent at the Australian Open in his career: vs Arnaud Clement (2000) and Andreas Seppi last year.
- Djokovic dropped only three sets in the 2015 Australian Open - two in his semi-final triumph over Stan Wawrinka and one in the final against Andy Murray.
- Nadal could secure his 15th grand slam title and overtake Pete Sampras, while Djokovic is looking to level Bjorn Borg with 11.
- Andy Murray has been runner-up at the Australian Open four times so far (incl. last year) - only John Bromwich has lost more finals than him in Australia (five between 1937 and 1949).
- The 2006 Australian Open was the last in which there was no Spanish representation in the quarter-finals.