Christian Klien's exit at the end of the year from Red Bull's lineup and also formula one now appears certain.
The team's 'almost independent' paddock newspaper, 'Red Bulletin', is reporting that the 23-year-old from Austria is set to leave the pinnacle of motor sport to race in an American series in 2007.
''I was a little surprised when I read that this morning,'' he was quoted as saying by 'Premiere' at Hockenheim.
''I will ask (team boss) Christian Horner what he knows about it.''
Klien insists that he does not yet know whether he will still be a Red Bull driver beyond the end of this season.
He said: ''It is my goal to sit in the car next year and I can only achieve that with good results.''
Asked if - Juan Pablo Montoya-style - he was interested in switching to NASCAR, in which Red Bull is also involved, Christian replied: ''No, not really.
''I am 100 per cent focused on formula one.''