Sky Australian Open Tennis 2013
Stan Wawrinka upset the odds to win his maiden Grand Slam in Melbourne last year, but big guns Rafael Nadal and Novak Djokovic struck back by winning at Roland Garros and Wimbledon respectively.
Marin Cilic then proved too strong for Kei Nishikori at the US Open in a final that no one predicted.
The championship match at Flushing Meadows was remarkably the first not to feature the 'Big Four' of Roger Federer, Nadal, Djokovic or Britain's Andy Murray since the Melbourne final in 2005, when Marat Safin beat Lleyton Hewitt.
Gaston Gaudio (French Open 2004), Safin (Australian Open 2005), Juan Martin Del Potro (US Open 2009), 'Stan The Man' and Croatia's Cilic last year are the exceptions.
Is there anybody in today's game that could possibly upset the odds in the sweltering heat of Melbourne at the opening major of the year?
Here, we look at five players who have the potential to cause an upset or two at the Australian Open...
Japan's rising son was named ATP Newcomer of Year in 2008 and has since gone from strength to strength on the tour – climbing to a career-high fifth in the world after reaching his maiden Grand Slam final in 'The Big Apple'. As a teenager, Nishikori moved to the USA without knowing a word of English to practice the arts of tennis at the Bollettieri Acadamey in Florida. It wasn't long before he became the youngest player to win an ATP title since Lleyton Hewitt at the age of 16 years, 10 months, 18 days in Adelaide. By the end of the year he became the first Japanese player to finish in the Top 100 since Shuzuo Matsuoka in 1995. In 2011, he compiled the best set of results of his career, finishing as world No 25 after reaching two ATP finals in Houston and Basel.