 By lap 20 , Sebastian Vettel was closing the gap to the two Red Bulls ahead of him , coming within three second of Verstappen . On lap 22 , Nico <unk> retired when his power unit caught fire and he had to stop on the sidelines . While Massa had fought from 18th on the grid into tenth , his teammate Bottas was lying fifth by lap 25 , ahead of Sainz . On lap 28 , Ricciardo was again the first of the front runners to pit , taking on the soft compound . Vettel came in two laps later , making the same choice in tyres . This left Verstappen to lead Kimi Räikkönen , as it emerged that both would run on a different strategy , <unk> only twice in contrast to the three stopping Vettel and Ricciardo . On lap 34 , the gap between the two leaders was 2 @.@ 1 seconds , before Verstappen came in on the following lap . Räikkönen responded one lap later , emerging behind Verstappen . On lap 39 , Vettel came in for his third and final stop , while Ricciardo stayed out for another four laps . When he returned to the track , he was behind Vettel , but on <unk> tyres . 
