The "BVB" smoothed the way for their win with three first-half goals, while Dominic Volkmer's red card before half-time left Duisburg hopeless.
"The game was in fact over after my team saw a straight red card. However, my team tried their best to avoid a worse defeat," Duisburg head coach Torsten Lieberknecht said.
Bremen piled on the pressure and should have doubled their lead in the 52nd minute when Chong missed the target just wide.
La Liga kicked off on Saturday with a 0-0 draw between Eibar and Celta, before Yangel Herrera and Luis Milla gave Granada a 2-0 win at home over Athletic Club and Osasuna won 2-0 away at newly promoted Cadiz with goals from Adrian Lopez and Ruben Suarez. Enditem
Ygor Catatau struck from the edge of the 18-yard box to give the visitors a two-goal cushion before Babi again found the target by bundling home from close range after smart work from Salomon Kalou.
Ren Xiangyu/Huang Yaqiong of Ruichang lost to He Jiting/Wei Yaxin 11-9, 13-11, 7-11, 11-8 in a fierce mixed doubles battle, before their teammates earned the next three points in the women's singles, women's doubles and men's singles respectively.
Wang had to end the cooperative relation with her coach Thomas Drouet from France in this August.
Williams will take on Azarenka in the semifinals, who triumphed against Mertens 6-1, 6-0.
DALIAN, China, Sept. 10 (Xinhua) -- Shandong Luneng were held to a 1-1 draw by Shanghai Shenhua in the 10th round of the Chinese Super League (CSL) here on Tuesday, while Guangzhou Evergrande beat Shenzhen FC 2-0.
The 2021 edition of the championships will be held in Turin, Italy. Enditem
While consensus among the F1 fraternity was that the Italian Mugello circuit's fast sweeping turns and frequent undulation would be the season's biggest physical challenge for the drivers, there were fears that a lack of heavy braking zones would make overtaking difficult.