Hertha Berlin general manager Michael Preetz has refused to deny speculation linking them with a move for Andriy Voronin.
Reports in the German press have suggested that Hertha are eyeing a winter move for the Liverpool striker, who spent a spell on loan at the club last season, as well as Wolfsburg attacker Ashkan Dejagah.
Hertha are currently rock-bottom of the German Bundesliga after a terrible start to the campaign, and they have been linked with a move for the duo as they attempt to turn their season around.
Preetz refused to deny the claims linking them with the pair, conceding that he will have to wait till the transfer window opens to sign attached players.
"We are only able to buy unattached players at this point this season and there is no unattached player able to help this club," he told spox.com.
"I am only willing to look at the situation right now and I have faith in the manager and the team."
Hertha take on Borussia Dortmund on Friday looking to improve on their existing tally of four points from 10 games.