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.
Zall's Brazilian forward Leonardo Baptistao sparked the contest into suspense with a powerful header to convert Li Hang's 67th-minute corner.
After a discussion of around 10 minutes between tournament referees and officials, Djokovic was disqualified from the match.
Meanwhile, in the women's 1,500 metres, reigning Olympic champion Faith Kipyegon will take on 2016 Rio Olympics runner-up Genzebe Dibaba in the Czech Republic. Enditem
"It was a good challenge but also very important for any athlete to be exposed to bigger competitions," Borhani said. Enditem
Ricciardo's teammate Esteban Ocon took eighth, with the second AlphaTauri of Daniil Kvyat and Perez rounding out the top ten.
Indeed the worry for some must be that last season saw the beginning of diminishing returns for Simeone and although he has always been able to maintain his team looking refreshed and motivated, 2020-21 might just be a season too far for Simeone's defensive style unless he is willing to be more proactive in attack. Enditem
The event attracted 39 contestants from all over the country. After taking off from an altitude of 360 meters, the athletes enjoyed the beautiful seaside scenery from a paraglider.
After the defeat, Brzeczek surprised the waiting journalists by praising his team.
"I was a little bit in shock," Carreno Busta said. "The rules are the rules. The referee and the supervisor did the right thing, but it's not easy to do it."
Looking at the big five European leagues, the Bundesliga is the one with the most goals per game.