Hamburg chairman Carl-Edgar Jarchow has admitted concern over the financial impact their summer transfer business, including the signing of Rafael van der Vaart, will have on the club.
The German outfit splashed out around £16.7million on the captures of Van der Vaart from Tottenham, Petr Jiracek from Wolfsburg and Milan Badelj from Dinamo Zagreb in the transfer window just passed.
The signings were made after Hamburg made an unsuccessful start to the latest Bundesliga campaign, while also crashing out of the German cup.
Jarchow admits the money spent is likely to hit the club hard and expects them to be operating in the red.
He told Norddeutscher Rundfunk: "This (the extra money spent on players) is a burden for me. I cannot deal with it that easily.
"Fortunately these players are all of an age that means they will have certain value in the future.
"But I definitely fear that this will see us operating in the red. No doubt."