The second chance for Hebei came in the stoppage time. In the 96th minute, Samir Memisevic made a direct pass forward, gifting Brazilian striker Marcos Vinicius Amaral Alves an easy tap-in to seal the victory.
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.
Patrick Bezerra equalized eight minutes later with a header following Thiago Galhardo's cross.
Looking at the potential of his young front line, optimism seems appropriate.
After a discussion of around 10 minutes between tournament referees and officials, Djokovic was disqualified from the match in accordance with the rules.
If Quintero's transfer to Shenzhen materializes, he will be the second Colombian in the team's squad, joining forward Harold Preciado.
Tokyo 2020 president Yoshiro Mori has said that the delayed Tokyo Olympics could not be held next year if the COVID-19 pandemic continues as it is. He also said that the Games will have to be canceled if it could not be held next year.
Botafogo looked set for a memorable victory when former Chelsea forward Salomon Kalou struck his first goal for the club in the 75th minute.
Things nearly got a lot worse for Zall before going off at half-time, when the ever-lively Zhang broke free once again, but this time his shot was well saved by the goalpost.
The German club was afraid that the striker would have to be quarantined after he returned to Berlin. In consequence they made an official request to PZPN to let Piatek not play against Bosnia and Herzegovina in Zenica on Monday. According to Hertha, the PZPN agreed.
Elsewhere, Belgium's Elise Mertens upset second seed Sofia Kenin of the United States 6-3, 6-3 to also make the last eight.