Guangzhou posed more threats than Dalian in the first half, but no goals were scored. What's worse for Rafa Benitez's side, Swedish center-back Marcus Danielson was subbed after just 21 minutes because of a head injury.
Wolfsburg eventually put the result beyond doubt in the dying minutes of the game after Xaver Schlager's square pass found unmarked Ginczek, who had all time and space to tap home the assist into the open goal.
Given the atmosphere currently surrounding the Camp Nou, Koeman needs to start with a win, because if not things are not going to get any easier. Enditem
Valencia's 4-2 win at home to Levante a week ago was a morale boost to a club that has internal problems and lost key players over the summer. However, Javi Gracia's side received a reality check on Saturday when they were outplayed by Celta Vigo, who beat them 2-1 with two goals from club captain Iago Aspas.
In the other match of Group C, Almoez Ali scored his third goal of the league to help Al Duhail SC beat Persepolis FC 1-0 and overtake the latter to lead the group.
The teams had been due to meet at Estadio Azteca in Mexico City on September 30, but Costa Rican federation Fedefutbol said it had no choice but to withdraw from the match because of quarantine rules.
Wander Helder scored twice for Leeds and Aleksander Mitrovic scored twice for the home side, who fought back from 4-1 down to give Leeds a nervy last 25 minutes.
The 18-year-old reeled in her American opponent 6-4, 6-2 in 79 minutes to set up a second-round qualifying meeting with local player Tessah Andrianjafitri, a 3-6, 7-5, 6-3 winner over Spain's Nuria Parrizas.
Players are also accused of lacking the right mentality.
The HAGOC also started a global appeal for the slogan of volunteers. Applicants can submit their proposal online, by post or on site to the HAGOC office over the next five weeks.
The second half started similarly to the first as Dortmund controlled possession whereas the Bavarians waited for chances. And their chance came earlier than expected, as Augsburg clinically doubled their advantage with only their second shot on target after Florian Niederlechner's through ball allowed Caligiuri to make it 2-0 in the 54th minute.