Kevin Magnussen was feeling under the weather yesterday in Mexico City, with the Dane complaining of a stomach ache.
The Haas driver was excused by the FIA for not attending the mandatory Friday drivers' briefing due to a "medical condition".
He was ordered by team boss Guenther Steiner to return back to the hotel but is expected to be up and running for Saturday's free practice and qualifying.
"I don't think it affected him too much," Steiner told Ekstra Bladet newspaper.
"I think there was a time when he had to leave the car because he needed something, but otherwise he was well enough.
"But we and (Magnussen's trainer) Thomas (Jorgensen) suggested that he should go back to the hotel instead of the driver meeting.
"He'll be fine," Steiner added.
"He was actually ok when he left, but my point of view was that he should not infect anyone else."
In the event that the Dane should not recover or feel fit enough, Haas would call upon reserve driver Antonio Giovinazzi, who ran with the team in yesterday's FP1 session.
Gallery: The beautiful wives and girlfriends of F1 drivers
Keep up to date with all the F1 news via Facebook and Twitter
Max Verstappen wrapped up his opening day at the Abu Dhabi Grand Prix sounding upbeat…
McLaren boss Zak Brown has brushed off a claim from Australian senator Matt Canavan that…
Lando Norris closed out Friday at the Abu Dhabi Grand Prix with authority, topping the…
Full results from Free Practice 2 for the Abu Dhabi Grand Prix at Yas Marina,…
Intrigue is swirling around Adrian Sutil after the former Grand Prix driver was arrested in…
On this day in 1975, a somber mood enveloped St Albans Abbey in Hertfordshire as…