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SHENZHEN, CHINA - OCTOBER 27: Ashleigh Barty of Australia plays a forehand against Belinda Bencic of Switzerland during their Women's Singles match on Day One of the 2019 WTA Finals at Shenzhen Bay Sports Center on October 27, 2019 in Shenzhen, China. (Photo by Clive Brunskill/Getty Images)

SHENZHEN, CHINA - OCTOBER 27: Ashleigh Barty of Australia plays a forehand against Belinda Bencic of Switzerland during their Women's Singles match on Day One of the 2019 WTA Finals at Shenzhen Bay Sports Center on October 27, 2019 in Shenzhen, China. (Photo by Clive Brunskill/Getty Images)