Carlos Sainz led Charles Leclerc to a Ferrari one-two in Friday practice at the Singapore Grand Prix with Max Verstappen down in eighth place. Verstappen and team-mate Sergio Perez, who was seventh fastest, were both complaining of a lack of rear grip. Even on the race-simulation runs later in the session, the Red Bulls did not come into their own. They were the fourth fastest car, with Alonso setting the pace, from Mercedes, then Ferrari and then Red Bull. Runaway championship leader Verstappen said before the track action started that he expected Singapore to be one of the tracks on which Red Bull would struggle more than normal and so far that is proving an accurate assessment. Verstappen had a rear snap at Turn 13, the exit of the Anderson Bridge, while Perez complained over the radio that he felt like he was going to crash on every corner entry. Verstappen is on a record-breaking run of 10 consecutive victories and Red Bull have won every race this year.

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