German Football Federation, or DFB, officials are concerned over the security measures needed to contain the thousands of Turkey fans expected to show when the sides play a EURO 2012 qualifier next month.
Group A leader Germany hosts Turkey at Berlin's Olympic Stadium, which has a capacity of 74,000, on Oct. 8.
Germany has a strong Turkish community, with 2.5 million inhabitants either Turkish or of Turkish origin, including key German playmaker Mesut Özil, who has recently signed for Real Madrid.
And while the Turkish federation will receive an official quota of 11,500 tickets, the German federation expects that up to 30,000 supporters could show up.
Concerns have been exacerbated by some incidents which marred a friendly between two Turkish clubs, Galatasaray and Fenerbahçe, in Monchengladbach in July. Much to the dismay of officials, fans managed to sneak rocket flares into the stadium, and one female spectator was injured.
"This match is more difficult to organize than a World Cup final,” DFB Secretary General Wolfgang Nierrsbach told Sport Bild weekly.
"We're hoping there will be mutual respect from both sets of fans but we also know that with the temperament of the Turkish fans it could all go sour, as it did at the friendly between Galatasaray and Fenerbahçe."
Germany, which finished runner-up to Spain in the 2008 European Championships and third in the 2010 World Cup, sits top of the group on six points with a superior goals difference to Turkey that also has won its first two games.