He told Bild: "There have been no talks between me, my agent and (Hertha general manager) Dieter Hoeness, yet.
"We want to have talks with Berlin quickly. I know my agent has been talking to Liverpool recently.
"I still have a contract at Anfield. They've just sold Robbie Keane. Up until he joined last summer, I was getting games for Liverpool.
"They have a shortage of strikers now. I would enjoy staying at Hertha. And even if I am not to stay on, I will give my very best until the very end."