Sebastian Vettel headed a Ferrari one-two in final practice at the Chinese Grand Prix as Mercedes struggled.
Lewis Hamilton had a scrappy session, featuring a number of errors including a huge 540-degree spin, and was fifth, a second off the pace of his title rival.
Mercedes team-mate Valtteri Bottas was third, but 0.743 seconds off Vettel. Red Bull’s Max Verstappen was fourth.
Daniel Ricciardo suffered a major engine failure in his Red Bull.
Ricciardo’s Renault engine failed in a cloud of flame and smoke, and Red Bull face a race against time to get the car ready for qualifying at 07:00 BST.
More to follow