Hertha Berlin are looking for striking reinforcements with the futures of Marko Pantelic and Andriy Voronin far from certain.
Hertha want to finalise a deal with Liverpool for the permanent signing of Voronin - who is currently on loan in Berlin.
Pantelic's future looks likely to lie away from Hertha as his current deal is set to expire in the summer.
The German media is already linking a host of names to Hertha as they compile a list of potential replacements.
FC Nantes' Ivan Klasnic, Hajduk Split's Nikola Kalinic and Grasshoppers' Raul Marcelo Bobadilla are all said to be high on Hertha's list of possible targets.
"We keep waiting in Marko's (Pantelic) case," Hertha general manager Dieter Hoeness told Berliner Zeitung.
"Concerning Andriy we are in talks and try to find a solution.
"Should one of them leave us in the end, we would need a suitable successor."