Aryna Sabalenka wins back-to-back Australian Open titles

Read MoreAryna Sabalenka ensured she wasn’t a one-hit wonder by clinching back-to-back Australian Open titles with a win over Zheng Qinwen on Saturday.Aryna Sabalenka ensured she wasn’t a one-hit wonder by clinching back-to-back Australian Open titles with a win over Zheng Qinwen on Saturday.