Haas driver Kevin Magnussen has been pulled from his Friday media duties ahead of Australian Grand Prix practice after experiencing bouts of nausea.
The Dane, who along with his team has made a superb start to the new F1 season, was due to take part in the FIA drivers' press conference at 10am local time [1am UK, 2am CET].
But in order to provide him with the maximum opportunity to recuperate ahead of FP1 at 1pm local time, it has been decided Magnussen will not take part.
A Haas spokesperson confirmed: "Kevin experienced some nausea during the night and earlier this morning.
"As a result, he will not be attending the FIA press conference this morning to recuperate and be ready for FP1 this afternoon.
"He has been seen by the team doctor and is expected to participate on-track today."
Magnussen is currently eighth in the drivers' standings after finishing fifth in the season-opening race in Bahrain and ninth a week later in Saudi Arabia.