Mercedes driver George Russell led the standings in a caution-filled third and final practice for the Las Vegas Grand Prix ahead of qualifying later on Friday.

In damp, greasy conditions, Britain's Russell saved his best lap for last, clocking a time of one minute 34.054 seconds to pip reigning Formula One world champion Max Verstappen of Red Bull by 0.227secs.

Alex Albon for Williams was third quickest in 1:34.875, ahead of Racing Bulls' French driver Isack Hadjar in fourth and Ferrari's Lewis Hamilton fifth.

But it was an unspectacular session for championship leaders Lando Norris and Oscar Piastri, who both appeared to be adopting a safety-first approach in awkward conditions ahead of qualifying later in the evening.

The McLaren duo, who are battling for the drivers title, finished

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