Charles Leclerc topped the FP1 timesheets ahead of team mate Carlos Sainz as the on-track action got under way in Singapore.
The session brought early hope for the Ferrari pair, with the Red Bull of Max Verstappen – chasing a record-extending 11th victory in a row this weekend – in third.
In a session that saw three yellow flags, courtesy of different monitor lizards sauntering across the track, Leclerc and Sainz caught the eye after their impressive showing in Monza last time out.
Lando Norris, sporting an array of new upgrades on his McLaren, was also looking pacey in fourth place in the standings.
With the drivers playing themselves in during the opening session, all eyes will be on FP2 to come later on today. Click play on the video player above to look back at the FP1 highlights.
Next Up
Related Articles
5 key questions after the first pre-season test in Bahrain
'Mercedes hiding a massive amount' – Leclerc
Watch as F1 TV break down Day 1 of second Bahrain test
Aston Martin make changes to trackside engineering structure
HighlightsCatch the action from Day 1 of the second Bahrain test
F1 announces Circuit de Barcelona-Catalunya extension