Rio Haryanto admits he is unsure whether he will be able to finish his rookie season with Manor as his management continues to chase funds.
Haryanto joined Manor at the start of the year but he admitted that, while having initially been given assurances over completing the entirety of 2016, the future is less clear.
"To be honest I don’t know and I hope that I can be here for the full season," he said when asked about speculation over his future.
"There are some rumours that I will only do half a season but at the moment my management are working very hard to get the full season.
"Right now, I’m still focused on the job and to give my best and we’ll see what happens."
Haryanto has recorded a best finish of 17th in Bahrain and Spain.