Nico Hulkenberg’s future with Sauber remains in doubt as rumours circulate that he has been released from his contract as the team is unable to pay his salary.
Last week it was reported that Sauber, who are currently facing severe financial difficulties, had failed to pay Hulkenberg since May.
Hulkenberg, 25-years-old, told German television broadcaster Sky: “I cannot say anything about contractual matters.
“Clearly, I must look after my future. We will see where it goes.”
The German, who finished tenth at his home grand prix last weekend, has been linked with a seat at both Lotus and Ferrari, as a possible replacement for Kimi Raikkonen, if he were to depart for Red Bull for 2014 or Felipe Massa, whose future at Ferrari still remains unclear.
“I cannot exclude anything, nothing is impossible,” explained Hulkenberg.
While Sauber Team Principal Monica Keltenborn has been clear about the teams financial problems, the team have so far refused to comment on the rumours regarding Hulkenberg.