Max Verstappen improved in the first Friday session at the Las Vegas Grand Prix, but was still beaten by his rivals in the last practice session.
The reigning drivers' champion has spent much of his time on the strip complaining about his car, at one point saying on the radio that he was 'going to crash'.
Verstappen ended up more than half a second slower than the fastest time of the session once again, with George Russell topping the timing sheets as the track improved through the session – meaning that Mercedes have had a car set the fastest lap of every session thus far.
The Dutchman was also beaten on the boards by his championship rival Lando Norris, who he has to beat this weekend to secure the title before next weekend in Qatar.
Lance Stroll was the man who brought out the red flag late in the session, his car failing him while out on the track and shutting down.