Rosberg leads Mercedes 1-2 in Oz FP1

Melbourne - Mercedes dominated the first free practice for the Formula One season-opening Australian Grand Prix on Friday, with Nico Rosberg edging his world champion team-mate Lewis Hamilton to top the timesheets.

Rosberg, last year's championship runner-up, rolled out of the garage early to set the fastest lap of 1m29.557s on a glorious day at Albert Park, topping Hamilton by a little less than three-tenths of a second.

The first run in Melbourne underlined the Constructors' champion’s ominous form at winter testing, even as rival teams struggled.

Williams driver Valtteri Bottas was the best of the rest, the Finn's fastest lap almost 1.2 seconds shy of last year's race winner Rosberg.

Toro Rosso's two rookies Carlos Sainz and 17-year-old Max Verstappen, who is set to become Formula One's youngest ever race driver on Sunday, also impressed.

Sainz was fourth fastest, with Verstappen sixth behind four-times world champion Sebastian Vettel, who was making his debut for Ferrari.

McLAREN SLOWEST

Dogged by reliability problems during winter testing, the gloom in the McLaren garage played out on the track as Jenson Button and Kevin Magnussen, sitting in for Fernando Alonso, finished the slowest of the 15 cars that registered flying lap times.

Red Bull driver Daniel Ricciardo, the only racer to win last season apart from the two Mercedes drivers, finished 10th fastest and pulled the first spin of the season, the Australian losing control for a brief roll into the grass.

With intrigue still hanging over the Sauber garage after their court battles with dumped Dutchman Giedo van der Garde, none of their cars pulled out onto the track.

Van der Garde was at Albert Park, suited up and apparently ready to drive after winning a court case against Sauber to be allowed to drive for the team.

Sauber's nominated drivers, Sweden's Marcus Ericsson and Brazilian Felipe Nasr, jumped in the cars but did not head out to the circuit.

Manor Marussia, having only recently emerged from administration, were unable to put either of their cars on the track.

RESULTS

1 Nico Rosberg (Germany) Mercedes – 1m29.557s

2 Lewis Hamilton (Britain) Mercedes - 1:29.586

3 Valtteri Bottas (Finland) Williams - 1:30.748

4 Carlos Sainz Jr (Spain) Toro Rosso - 1:31.014

5 Sebastian Vettel (Germany) Ferrari - 1:31.029

6 Max Verstappen (Netherlands) Toro Rosso - 1:31.067

7 Felipe Massa (Brazil) Williams - 1:31.188

8 Kimi Raikkonen (Finland) Ferrari - 1:31.310

9 Pastor Maldonado (Venezuela) Lotus - 1:31.451