(CNN) -- The 2011 tennis season has now started in earnest and every player will want to score an early-season grand slam triumph.
World number one Rafael Nadal has the chance to become the first man since Rod Laver in 1969 to hold all four of tennis' majors at the same time, while Roger Federer will be focused on a repeat of his 2010 victory.
Fifth seed Andy Murray will aim to go one better than the final he managed at Melbourne Park last year, where he was beaten by Federer, and Serb Novak Djokovic will by eyeing the title he claimed in 2008.
In the women's draw, top seed Caroline Wozniacki needs a major title to silence her critics while Vera Zvonareva is also in search of a first career slam.
Third seed Kim Clijsters could win a second consecutive major, while Li Na could make history and become China's first grand slam singles winner.
The ultimate outcome of both sides of the draw may be impossible to predict, but high drama and top-quality tennis are guaranteed.
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