Pascal Wehrlein still doesn't have a clear picture of his future, although he hopes he will remain in F1 next year.
The Sauber driver arrived in Austin this week right on his 23rd birthday but had no gifts or good news waiting for him in Texas as talks continue behind closed doors for the Mercedes protégé.
"There is nothing new," Wehrlein said, although he confirmed that Mercedes boss Toto Wolff was still in contact with Williams regarding a seat which appears more and more likely to go to either Robert Kubica or Paul di Resta.
"I just hope to know what I am doing before the last race in Abu Dhabi," he said.
Wehrlein could be pushed out of Sauber by Ferrari junior Charles Leclerc, while Marcus Ericsson is in the running for the second seat.
But it is believed new Sauber boss Frederic Vasseur would actually prefer Wehrlein to stay, even if Ericsson is closely linked to the team's owners.
Indeed, Swede Ericsson admitted in Austin that his future is not clear either.
"When you don't have a contract signed, you can never be comfortable in formula one," he said.
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