Quinn Rooney/Getty Images
MELBOURNE, AUSTRALIA - JANUARY 24: Sloane Stephens in action during her semifinal match against world No. 1 and defending champion Victoria Azarenka. Stephens' Cinderella run ended with a 6-1, 6-4 loss to Azarenka, but she proved herself a rising star in women's tennis and left Australia as the No. 17-ranked player in the world.