The hosts almost made it four moments later but Matthias Ginter hacked Felix Passlack's shot off the goal line.
Dortmund CEO Hans-Joachim Watzke has demanded that everybody obey the rules and "diligently take the great chance we have been given in sports."
"Staying at the top might be much harder than getting to the top. One has to consider all the possible details both on and off the pitch."
Cologne had the worst possible start on home soil as Jonas Hector's return pass was intercepted by Kramaric, who kept his cool and nutmegged goalkeeper Timo Horn for the opener with only three minutes gone.
Following is the preliminary Argentina squad:
The Championship League has been expanded to a full World Snooker Tour ranking event this season, featuring 128 players in three stages over 21 days.
Battaglia made his debut for Argentina against Colombia in September 2018 but his ascent on the international stage was halted by a serious knee injury just weeks later.
The final word was for Aspas, however, as he scored an intelligent free-kick that went over the wall and dipped quickly in the 57th minute.
Elhami was banned from coaching activities by the Disciplinary Committee of the Iranian Football Federation.
The country is undergoing an uncertain weather condition, which may render the fields to be unsafe.
Li Ang netted a right-sided free-kick on 74 minutes to put the game beyond doubt, with a sweet finish for Suning.