"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.
The reasons seem apparent in Klein's view.
Duris might have doubled Slovakia's lead, but Israel goalkeeper Ofir Marciano was equal to his effort, and also saved well from Robert Bozenik late in the game.
"I've been playing well the past couple of weeks, training well, focussing on the right things, maintaining that level of performance and hoping for the best. I'm feeling confident about my game and taking that to every match I play."
Williams will take on Bulgaria's Tsvetana Pironkova, who overcame Alize Cornet of France 6-4, 6-7 (5), 6-3 in another round of 16 match.
Awaiting him in the next round is 20th seed Pablo Carreno Busta of Spain.
Kosgei was later disqualified for infringement after she was found to have stepped on the rail.
"Hongjiaoling Aviation Camp not only provides technical support for aviation sports events in Hainan, but also provides new choices for people who come to Hainan for leisure and vacation," said Yang Zhuoyue, an official with the General Administration of Sport of China. Enditem
Although they face a tight schedule with another seven internationals until mid-November, Loew is adjusting his traditional approach to his new generation.
This was Van Aert's second stage win in the race, after the Jumbo all-rounder had also triumphed in stage five.
In earlier matches, sixth seed Petra Kvitova of the Czech Republic and eighth seed Petra Martic from Croatia also advanced into women's last 16. Enditem