"We face the world's best team, and you can say it is one of the hardest games you can start with. But still, it's a game, and this gives you the chance to achieve some points," the striker told Xinhua in an interview.
The two sides meet again on the same ground on Thursday.
"We had two big chances in the first half but Dortmund were more effective and clinical in front of the target today," Monchengladbach head coach Rose said.
The 2019 edition of the FIVB Men's and Women's Volleyball Club World Championships were held by Brazil and China respectively, with Italian clubs Lube Civitanova and Imoco Volley claiming gold. Enditem
Five minutes later, the crossbar denied Dortmund a greater lead before the break, as Jadon Sancho's header bounced off the woodwork.
Elhami was banned from coaching activities by the Disciplinary Committee of the Iranian Football Federation.
"We are in CAF already because our names have been taken there. Even if you are going by last year's records, if you nullify the league, last year's champions represent the country, which is ourselves," said Rachier.
The win was a relief for the German coach and the struggling defending champions as they have scored only one goal in the opening three games, which was the worst record for the capital club since the 1984-1985 season.
Lucas Oliveira put the hosts ahead with a rasping 20-yard effort that flew into the top-left corner before Keno equalized from the penalty spot after Nathan Souza was brought down by Eder Ferreira.
The 26-year-old Wang from Guangdong took the pole position in a three-man leading group in the early stages of the race and soon broke clear to seize a comfortable sole lead. The 2018 Asian Games champion never looked back until breaking the tape in style with a clocking of one hour, 20 minutes and 49 seconds.
Aubameyang scored in Arsenal's opening game of the season as they won 3-0 away last Saturday and netted 22 league goals last season (to add to the 22 he scored the previous year), as well as scoring both goals in his side's FA Cup final win over Chelsea.