Zhang Shuai's struggling mentality

Saisai Zheng of China plays Paula Badosa Gibert of Spain during day 4 of the Miami (Getty Images)-1 Source: Getty Images

Chinese qualifier Zhang Shuai had not won a match in her 14 appearances at grand slams, but she ended her considerable losing streak overnight with a remarkable - and emotional - win over second seed Simona Halep at the Australian Open.She told media her struggling mentality after the match.

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