Monisha Kaltenborn has said that Sauber are in no rush to announce their driver lineup for 2017.

With seats at Force India, Renault, Williams, Manor and Toro Rosso also still technically open, the F1 driver 'silly season' is now in high gear.

Yet when asked if Sauber might make a move soon, team boss Kaltenborn said in Austin: "I don't think so.

"Long gone are the days when everyone wanted to know their drivers for the following season by Hungary."

However, Sauber have been among the latest to announce their drivers in recent years, and Kaltenborn admitted that the Swiss team would like to be quicker for 2017.

"Our goal is to announce the drivers before the end of the season," she said.

"There is not much time before then, but we are already moving in the right direction."

Sauber's current drivers are Marcus Ericsson, who is close to the team's new investors, and the Banco do Brasil-backed Felipe Nasr.