KUALA LUMPUR, MALAYSIA - MARCH 03: Ying-Ying Duan of China serves to Magda Linette of Poland during the Quarter Finals of the 2017 WTA Malaysian Open at the TPC on March 3, 2017 in Kuala Lumpur, Malaysia. (Photo by Stanley Chou/Getty Images)
KUALA LUMPUR, MALAYSIA - MARCH 03: Ying-Ying Duan of China serves to Magda Linette of Poland during the Quarter Finals of the 2017 WTA Malaysian Open at the TPC on March 3, 2017 in Kuala Lumpur, Malaysia. (Photo by Stanley Chou/Getty Images)