Zheng Qinwen fights back from 5-0 down in the deciding set and stares down match point to stun American 22nd seed Madison Keys.

Today at the U.S. Open, Zheng Qinwen was down 0-5 in the third and deciding set against Madison Keys. She won the match. A lot of people who don’t know a lot about tennis will look at that scoreline and reach for the easiest explanation: Keys imploded.

Zheng Qinwen won the last seven games to stun Madison Keys and reach the US Open last 16 in a day of upsets that dented American hopes yesterday at

China's Zheng Qinwen recovered from 5-0 down in the deciding set to beat American ​Madison Keys 1-6 7-6(3) 7-5 in the U.S. Open third round on Saturday as she battles back from a chronic right elbow injury that has stunted her career.

Zheng Qinwen pulled off an epic upset, winning the last seven games to stun Madison Keys and keep her unlikely US Open challenge going on Saturday. The Paris Olympics gold medallist from China triumphed 1-6,

Zheng Qinwen overcame elbow surgery and self-doubt to reach the fourth round at the U.S. Open, reigniting her passion for tennis after recovering physically and mentally through dedicated training. Her journey saw her upset former finalist Madison Keys,