Azarenka moves to Champions Trophy quarterfinalBelarus’ world number 13 Victoria Azarenka went off to a good start at the Champions Trophy in Melbourne, Australia, seeing off Kazakhstan’s world number 28 Yulia Putintseva, 6-4, 1-6, 11-9, in the round of Last 16 on 4 February. The former world number one will next face either world number 339 Bethanie Mattek-Sands of the United States or Estonia’s world number 23 Anett Kontaveit...