Austrlian GP: Nico Rosberg leads Lewis Hamilton in first practice

Nico Rosberg narrowly beat team-mate Lewis Hamilton to fastest time as Mercedes dominate first practice for the Australian Grand Prix.

Rosberg was just 0.029 seconds quicker than the champion as Mercedes were more than a second clear of the field. Williams's Valtteri Bottas was third.

Neither Sauber, locked in a legal dispute with ex-reserve driver Giedo Van Der Garde, nor Manor did any laps in Melbourne.

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