Haas will decide their own driver lineup for 2018 without any influence from Ferrari, says Guenther Steiner.
While Romain Grosjean and Kevin Magnussen are Haas' current lineup, neither driver is guaranteed a seat for next season.
But while Grosjean is hoping that for a step up to Ferrari, who power Haas, Ferrari youngsters Antonio Giovinazzi and Charles Leclerc are keen to make their move into an F1 race seat.
Steiner, though, is adamant Haas will be making their own driver decisions.
The Haas team boss told Ekstra Bladet newspaper: "We are waiting a few more races, but we have control of our drivers (decision)."
The team boss was full of praise for his current line-up, saying Haas couldn't be making the improvements they have been "without our current drivers."
He added: "Romain is sometimes criticised for how he gives his feedback during practice. We are okay with this because he helps us grow as a team. As long as it does not get personal.
"Then we have Kevin, who has so far taken a good step forward.
"The team has become more mature, and the drivers had much to do with that."
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