Aryna Sabalenka retains Australian Open title with stunning performance

She did not drop a set in seven matches and defeated China's Zheng 6-3 6-2

TOO GOOD: Aryna Sabalenka of Belarus holds the Daphne Akhurst Memorial Cup aafter defeating Zheng Qinwen of China in the women's singles final at the Australian Open

Aryna Sabalenka completed a ruthless defence of her Australian Open title by beating first-timer Zheng Qinwen in the final.

The world number two lifted her first grand-slam trophy at Melbourne Park 12 months ago and has been untouchable this fortnight.