article_snippet: Mercedes dominated free practice at Formula One's season-opening Australian Grand Prix on Friday, with Nico Rosberg edging his world champion team-mate Lewis Hamilton to top the timesheets in both sessions.
article_snippet: German Rosberg, last year's championship runner-up, set the fastest lap of 1:27.697secs in the second session on a glorious day at Albert Park, topping Hamilton by one tenth of a second.
article_snippet: Nico Rosberg was also quickest in the first session, Nico Rosberg best time of 1:29.557secs edging Hamilton as the constructors' champions carried the constructors' ominous form from winter testing onto the track.
article_snippet: Nico Rosberg made a flying start to Nico Rosberg season as Nico Rosberg topped the timesheets in both practice sessions .
article_snippet: Nico Rosberg pictured in action ahead of Sunday's season opener at the Australian Grand Prix .
article_snippet: But with Four-time world champion Sebastian Vettel's fastest time over seven tenths of a second adrift of Rosberg, the opening day's practice will strengthen belief that the first rounds of the new season may be a private duel for race wins between the Mercedes duo.
article_snippet: Rosberg is bidding to bounce back from last season's disappointment by clinching Rosberg maiden campaign .
article_snippet: World champion Hamilton finished behind Rosberg in both practice sessions on Friday .
highlights_snippet: Mercedes dominated the practice sessions in Melbourne on Friday .
  
highlights_snippet: Nico Rosberg finished ahead of rival Lewis Hamilton in both sessions .
  