Fernando Alonso set the fastest time of final practice for the Singapore Grand Prix as he edged out Daniel Ricciardo by just 0.051s.

Alonso's time of 1:47.299 ensured he finished in the top two of every practice session as he continued his impressive pace from Friday. Mercedes will be aware it has a fight on its hands for pole position as Ricciardo was second quickest ahead of Nico Rosberg, while Lewis Hamilton could only set the sixth quickest time after appearing to struggle with the handling of his car throughout the session.

Hamilton had a scare on his first run of FP3 as he took lost control approaching Turn 5, taking too much kerb on the outside of the track before turn in. Hamilton was able to catch the car before it spun completely, but the slide damaged his tyres and he told the team over the radio that he had to jump start the car again after the engine stalled.

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Between the two Mercedes' were Jean-Eric Vergne and Sebastian Vettel, with Vettel looking particularly strong in the final sector as he used every inch of track available. Just over 0.6s covered the top six, and Williams recovered from a poor Friday to finish seventh and eighth with Felipe Massa and Valtteri Bottas respectively.

Both Williams drivers complained of problems with rear end grip during Friday's sessions, but appeared to find more time on the supersoft tyre on Saturday than they had in FP2. However, they still appear unlikely to challenge Mercedes, Red Bull or Ferrari in qualifying.

Kimi Raikkonen and Esteban Gutierrez rounded out the top ten as the McLarens slipped back from their Friday positions. Jenson Button also had a worrying moment when he ran deep in to Turn 14 and had to take to the escape road before lighting up the rears to spin the car round in the small run-off area.