Formula1:Red Bull comes first as Roseberg crashes read more at here www.spinonews.com/index.php/item/869-formula1-red-bull-comes-first-as-roseberg-crashes

Max Verstappen edged team-mate Daniel Ricciardo in a Red Bull one-two with Lewis Hamilton fourth in first practice at the Singapore Grand Prix.

Hamilton's Mercedes team-mate and title rival Nico Rosberg, fifth fastest, crashed late in the session, misjudging his entry to Turn 18 and wiping off his front wing.

Hamilton and Rosberg set their quickest laps on the slowest soft tyre, while Red Bull and Ferrari for whom Sebastian Vettel was third fastest were on the fastest ultra-soft.

Vettel was 0.464 seconds off the Red Bulls, who were separated by only 0.049secs

In theory, there is as much as 1.2 seconds between the two tyres, while Hamilton was only 0.603 seconds off the pace, with Rosberg 0.087secs further adrift.

Hamilton heads into the race two points ahead of Rosberg with seven races to go, after consecutive victories for the German in the previous two races in Belgium and Italy.

However Mercedes tend to struggle to gain as much time on the softest tyres as other teams, so the stage does appear set for a closer-than-usual fight this weekend.

And the first session is a inaccurate predictor of form for this race, as it starts during daylight and ends after dark, whereas qualifying and race both take place under lights after sunset in the south-east Asian city state.

The top three teams were well clear of the rest, with Toro Rosso's Carlos Sainz more than a second off the pace in sixth fastest ahead of team-mate Daniil Kvyat, Ferrari's Kimi Raikkonen, Williams' Felipe Massa and Haas' Esteban Gutierrez.

Fernando Alonso was a slightly disappointing 11th fastest for McLaren at the start of a weekend where the team expect an upturn in form and to be well inside the top 10.

But the Spaniard who along with Hamilton and Force India's Nico Hulkenberg did some running early on with the development 'halo' head protection system was well clear of Jenson Button.