Nico Rosberg looks in good shape to continue his perfect start to the 2016 Formula One season at the Russian Grand Prix, but the championship leader is taking nothing for granted.
Having won the opening three races of the campaign, the German took pole in Sochi on Saturday as Mercedes team-mate Lewis Hamilton experienced more power trouble, seeing him qualify 10th.
And things could get worse for Hamilton, if Mercedes are forced into technical changes to the car that could induce another grid penalty.
Already holding a 36-point lead over the double defending champion in the standings, Rosberg said Saturday's action put him in a strong position for the race, but was quick to guard against any complacency.
"I was just focused on myself out there, really going for it and feeling great about it," he said.
"From Q2 onwards it just felt awesome. The others today have been extremely unfortunate, so that makes my race a little bit easier tomorrow, but a Formula One race is never easy.
"Even from where Sebastian [Vettel] is, and Valtteri [Bottas] behind, the opposition is still there.
"I need to keep focused and get the job done."
Ferrari's Vettel initially qualified second, but a five-place grid penalty for a gear box change means Williams' Bottas will join Rosberg on the front row.
Kimi Raikkonen of Ferrari will start third, with Bottas' Williams team-mate Felipe Massa fourth.