Dissecting the techniques of the big four

Novak Djokovic, Andy Murray and Roger Federer sailed through their first-round opponents at the Australian Open. Murray, coming off his first Grand Slam title, has a tough record to live down in Melbourne -- two finals and a semifinal in his past three Australian engagements -- and a lot to prove. Federer is looking at a couple of trying matches at the outset, followed by a potential tussle with Bernard Tomic before even thinking about facing Murray or Djokovic.

Their techniques are the key weapons for each Grand Slam contender. Grueling hours of training develop deadly swings unique to each man's game. A change in grip could mean the difference between securing a title and going home empty-handed.

The drama is just getting started. Even with Rafael Nadal out recovering from a stomach virus, the journey to the title promises to be an exciting one. Tickets are still available for the Australian Open at TicketCity. With a new rivalry developing between Djokovic and Murray -- especially after the longest match in U.S. Open history -- this year's games at Melbourne should be spectacular.