Russian Teenager Upends Kerber in Sydney
Photo courtesy of Flickr Creative Commons/Carine06 Daria Kasatkina scored the biggest win of her young career on Tuesday, downing world number one Angelique Kerber 7-6(5), 6-2 to reach the Apia International Sydney quarterfinals. While she enjoyed a fantastic season in 2016, Kasatkina was just 2-10 against top 10 players, and that trend continued early on…

