Kosgei was later disqualified for infringement after she was found to have stepped on the rail.
Third seed Williams essayed a signature comeback and served 12 aces to edge past her American compatriot Stephens 2-6, 6-2, 6-2 in one hour and 43 minutes.
World champion Daniel Stahl took his 13th consecutive victory in the men's discus, with the Swede throwing 67.28m.
“Something clicked today. I can make putts now. You know I was really happy to make a birdie putt from 10 feet at the second hole, which gave me a lot of confidence,” said Zhang who has qualified for the US Women’s Open in December.
National teammate Zhang Yaoguang finished second at 8.23m, followed by Asian Games champion Wang Jianan at 8.08m.
Germany has been on the right track over the last decades, keeping an eye on its clubs' financial policy. The COVID-19 pandemic might have enforced the impression.
Chen Pu (R) of Shijiazhuang Ever Bright celebrates with his teammate Matheus Nascimento after scoring a goal during the 9th round match between Qingdao Huanghai and Shijiazhuang Ever Bright at the postponed 2020 season Chinese Football Association Super League (CSL) Suzhou Division in Suzhou, east China's Jiangsu Province, Sept. 5, 2020. (Xinhua/Yang Lei)
"We strictly followed the coach's match plan. This is a victory that belongs to the whole team since we played our football," said Saba. "As a forward, scoring goals is my responsibility."
Shenzhen will also face another huge loss in the clash with defending champions since Mary got a red card and was sent off the pitch in the stoppage time due to his aggressive language to Shanghai head coach Choi Kang-Hee.
The Chinese Football Association (CFA) announced on August 26 that the 2020 China League One season will kick off on September 12.
Former two-time Olympic canoeing champion Meng Guanliang, who called on the public to live a green and healthy life at the closing ceremony, said he was "very excited" to be part of such an event.