Laura Robson

Age: 18

Nation: Great Britain

World Ranking: 53

2012 Australian Open: First round

After a breakthrough year in 2012, which included picking up an Olympic silver medal in the doubles with Andy Murray and career-best fourth round appearance at the US Open in September, British hopeful Laura Robson has kicked off 2013 by breaking into the top 50 in early January. There's no doubting the teenager is a very long shot for the Australian Open, but she's definitely heading in the right direction.