Hamburg - Swiss striker Eren Derdiyok on Friday reportedly turned down an offer from surprise Bundesliga leaders Hoffenheim who are looking for a replacement for injured top striker Vedad Ibisevic.
Derdiyok told German sports magazine Kicker that he was committed to a move to league rivals Bayer Leverkusen from his current Swiss club Basle.
"I am honoured by their interest, but I have already given my word to Bayer Leverkusen to join them and I will not change that," he was quoted as saying on the Kicker website.
