Lewis Hamilton took pole position in yet another two-horse race at the British Grand Prix on Saturday.
Rosberg qualified just over a tenth-of-a-second behind his teammate but had a chance to nick it on the final lap as the British driver pulled into the pits instead of completing a time.
The German was unable to improve and subsequently did not build on his one pole so far this season, which made it eight out of nine for Hamilton.
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The imperious nature of the Mercedes team contrasts starkly with the fortunes of McLaren, where Jensen Button failed to make it past Q1 alongside Fernando Alonso. Both racers have Formula 1 titles to their name but do not seem capable of mounting any kind of challenge this season.
It is strange to see them languishing at the depths of the standings table while Mercedes goes from strength-to-strength.
In fact, the German team has been performing so consistently this season that it's almost unthinkable for one of their drivers to fail tomorrow and miss out on taking the chequered flag.
On the one hand, this is a great prospect for Hamilton, who is odds-on to win his third British Grand Prix and delight the home fans. Yet at the same time it does not bode well for the unpredictability of the sport as a whole.
The biggest story tomorrow is likely to be centred around the battle between Hamilton and Rosberg, even though regardless of the winner Mercedes will be the triumphant constructor. If this continues to happen, teams such as McLaren will only slip further away from the pack.
The dominance of one team is beginning to threaten the rest of the playing field. They cannot perform at the same level and will never get back to anywhere near the top if this pattern goes on for the rest of the season.
No one is doubting the skill of Button or Alonso, but if they are to start climbing their way up towards the summit, something unexpected is going to have to happen tomorrow.
While it will almost certainly not be McLaren who win the race, one of the lesser teams needs to start challenging Mercedes. Either way it is likely the fans will be going home happy: a British victor or an underdog from nowhere. Unless of course it's Rosberg.