Three first-time men's and women's Grand Slam finalists in 2014 helped to bring about talk of new contenders and the possibility of a changing of the guard on the ATP and WTA tours. But just how difficult is it to break through at the Australian Open or at any Slam? For the men, the numbers say it's quite difficult but for the women, the story is much different. Take a look below to see the most likely contenders for the title in 2015 and how often the Australian Open has yielded first time Slam winners.
Check SI.com's Australian Open Daily Data Visualizations hub page throughout the whole tournament for the latest data-driven infographics and charts.