Ferrari made an early statement at the Qatar Grand Prix, with Charles Leclerc top of the timing boards by some distance.
The team in red are just 24 points behind McLaren in the constructors' championship with two race weekends to go, with extra points on offer thanks to the sprint race in Qatar.
Red Bull are nominally still in the running too, but at 53 points behind and with Sergio Perez struggling to pull his weight, they're likely to officially drop out of contention this weekend. Perez could only set the 18th fastest time of the session, with Max Verstappen 11th.
The running in Lusail, the only practice session of the weekend thanks to the sprint format, featured a number of drivers finding the limits of their cars, often running well wide with Lando Norris in particular having a huge snap of oversteer.