Who was Stubbs' playing partner when she won the 2021 U.S. Open doubles?
Zhang Shuai
Ashleigh Barty
Naomi Osaka
Simona Halep
Answer
Zhang Shuai was Stubbs' playing partner when she won the 2021 U.S. Open doubles title. The duo defeated the top-seeded pair of Elise Mertens and Hsieh Su-wei in the final, marking Stubbs' first Grand Slam doubles victory and Zhang's second.
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