Lando Norris headlined Formula 1's second practice session for the Las Vegas Grand Prix, which was interrupted twice in the final 20 minutes by red flags for a suspected loose manhole cover at Turn 17.
In a session preceded by light rain, it took five minutes before the drivers elected to brave a presumably slippery circuit - and it took much of the opening half to build up towards Charles Leclerc's 1m34.802s benchmark from FP1.
