"If we can exert our speed and strength, we young players are able to beat experienced ones in the 11-point competition system," said Han Qianxi.
"There's no past Grand Slam champions left in the draw," said fifth seed Alexander Zverev from Germany, who made light work of Spain's Alejandro Davidovich 6-2, 6-2, 6-1 in another fourth round match.
Williams said: "It was intense I have to say. We always have some really incredible matches and it brings out the best of my fitness when I play Sloane. I tried to stay calm and be more serene after the loss of the first set. I knew it was important for me just to keep trying, just to keep going."
Switzerland's debutant Marc Hirschi had a brilliant solo lead for over 80km before being caught 1.5km from the finish, where Pagacar edged fellow Slovenian Roglic to claim the victory,
Mena struck in the 41st and 51st minutes at Estadio Victoria as the visitors secured their fifth win from eight matches.
After a discussion of around 10 minutes between tournament referees and officials, Djokovic was disqualified from the match in accordance with the rules.
Nearly all students have returned to schools this September in China. As the COVID-19 epidemic eases and the new semester begins, girls in northwest China can return to their beloved football pitch again.
In the final and decisive women's doubles, Feng XueYing/Wu Yingshi swept Lv Rouhao/Ren Linfei to award Shenzhen the victory.
Mbappe scored for Les Bleus in their 1-0 win over Sweden on Saturday, but will now be absent for Tuesday's clash against Croatia at Stade de France, which is a rematch of the 2018 FIFA World Cup final.
"I'm very happy to play a tough game with such wonderful shuttler. I was not cautious enough today and I felt nervous on some key points. But generally I think I performed well," said Chen.
WADA said in a statement on Friday that several government representatives have expressed concerns "relative to threats from the United States Government to withdraw funding from the Agency if WADA did not fulfill a number of conditions."