Hamburg have been dealt a huge blow after learning that striker Mladen Petric has been ruled out until the new year as he requires surgery on an ankle injury.
The Croatia international injured his ankle in Saturday's 3-1 win against Hertha Berlin and will go under the knife in Basle tomorrow.
Petric, who has scored three goals in six Bundesliga appearances last season, will be a big loss for Hamburg, currently joint-top of the league alongside Bayer Leverkusen.
Hamburg coach Bruno Labbadia told the club's official website about the injury blow.
"Naturally it is a bitter blow for us," he said. "I hope that Mladen will return as soon as possible. We will have to come up with a solution to this problem over the coming weeks.''
Petric joins defenders Alex Silva (torn cruciate knee ligaments), Bastian Reinhardt (metatarsal fracture), midfielder Collin Benjamin (knee) and striker Jose Paolo Guerrero (torn cruciate knee ligaments) on the long-term injury list.