Charles Leclerc was fastest ahead of team-mate Carlos Sainz as Ferrari produced a dominant showing in a wet first practice session at the Emilia Romagna GP.
The world championship leader's time of 1:29.402 was almost 0.9s clear of Sainz, with Max Verstappen a further 0.5s back for Red Bull, ahead of qualifying later on Friday in Imola that will set the grid for the first Sprint of the season on Saturday.
In a session which saw cars regularly spinning and struggling to stay on track in the challenging conditions, Haas were the surprise package as Kevin Magnussen and Mick Schumacher finished fourth and fifth respectively ahead of the other Red Bull of Sergio Perez.
Meanwhile, it was another disappointing showing for Mercedes, with George Russell 10th and Lewis Hamilton 18th - and seven seconds off Leclerc's time - as the Silver Arrows once more failed to compete with their rivals.
There was plenty of intrigue going into the session as Formula One's all-new 2022 cars faced genuine wet conditions for the first time, but ultimately Leclerc's early-season dominance was only exaggerated as Ferrari coped best with the wet and cold track at the Italian team's home GP.
