Tennis Tipster News: Li Na defeats Azarenka to move into the quarter finals

China's Li Na made it into the quarter-finals for the second year in a row with a 6-3 6-3 win over Vicky Azarenka. The Belarusian had her chances but could not convert her break point chances especially in the second set when leading 2-1. Azarenka's 2nd serve let her down including numerous double faults and the youngster could not cope with Na Li's consistency and acuracy. Could Li Na be Chinas first Grand Slam Champion?