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New track, same result: Mercedes drivers Rosberg and Hamilton lead 1st practice for Russia GP

  • Mercedes driver Lewis Hamilton of Britain steers his car during the first free practice at the Sochi Autodrom Formula One circuit, in Sochi, Russia, Friday, Oct. 10, 2014. The inaugural Russian GP will be held on Sunday in Sochi, the Black Sea resort that hosted this year's Winter Olympics. (AP Photo/Luca Bruno)

    Mercedes driver Lewis Hamilton of Britain steers his car during the first free practice at the Sochi Autodrom Formula One circuit, in Sochi, Russia, Friday, Oct. 10, 2014. The inaugural Russian GP will be held on Sunday in Sochi, the Black Sea resort that hosted this year's Winter Olympics. (AP Photo/Luca Bruno)  (The Associated Press)

  • Marussia driver Jules Bianchi's car is seen in the Marussia pit during the first free practice at the 'Sochi Autodrom' Formula One circuit in Sochi, Russia, Friday, Oct. 10, 2014. The Marussia Formula One team says it will run only one car at the inaugural Russian Grand Prix this weekend as a sign of respect for its injured driver Bianchi. The inaugural Russian GP will be held on Sunday in Sochi, the Black Sea resort that hosted this year's Winter Olympics. (AP Photo/Luca Bruno)

    Marussia driver Jules Bianchi's car is seen in the Marussia pit during the first free practice at the 'Sochi Autodrom' Formula One circuit in Sochi, Russia, Friday, Oct. 10, 2014. The Marussia Formula One team says it will run only one car at the inaugural Russian Grand Prix this weekend as a sign of respect for its injured driver Bianchi. The inaugural Russian GP will be held on Sunday in Sochi, the Black Sea resort that hosted this year's Winter Olympics. (AP Photo/Luca Bruno)  (The Associated Press)

  • Mercedes driver Nico Rosberg of Germany wearing his helmet writing in French 'Tous avec Jules' (Everybody with Jules) steers his machine bearing a "Keep Fighting Michael" sign, praying for full recovery of Michael Schumacher during the first free practice at the 'Sochi Autodrom' Formula One circuit in Sochi, Russia, Friday, Oct. 10, 2014. The Marussia Formula One team says it will run only one car at the inaugural Russian Grand Prix this weekend as a sign of respect for its injured driver Jules Bianchi. The inaugural Russian GP will be held on Sunday in Sochi, the Black Sea resort that hosted this year's Winter Olympics. (AP Photo/Luca Bruno)

    Mercedes driver Nico Rosberg of Germany wearing his helmet writing in French 'Tous avec Jules' (Everybody with Jules) steers his machine bearing a "Keep Fighting Michael" sign, praying for full recovery of Michael Schumacher during the first free practice at the 'Sochi Autodrom' Formula One circuit in Sochi, Russia, Friday, Oct. 10, 2014. The Marussia Formula One team says it will run only one car at the inaugural Russian Grand Prix this weekend as a sign of respect for its injured driver Jules Bianchi. The inaugural Russian GP will be held on Sunday in Sochi, the Black Sea resort that hosted this year's Winter Olympics. (AP Photo/Luca Bruno)  (The Associated Press)

Nico Rosberg edged Mercedes teammate and Formula One championship leader Lewis Hamilton in Friday's morning practice for the inaugural Russian Grand Prix.

The Mercedes pair has dominated all season and was again firmly in control despite an unfamiliar track making its debut on the F1 calendar.

Rosberg's fastest lap on the Sochi Autodrom was one minute, 42.311 seconds; 0.065 seconds ahead of Hamilton, who leads Rosberg by 10 points in the title race.

Jenson Button and Kevin Magnussen of McLaren were third and fifth fastest respectively, split by Ferrari's Fernando Alonso.

The Marussia team ran only one car in respect to its driver Jules Bianchi, who remains in a critical condition after last Sunday's accident in Japan.