Rosberg will win the championship if he wins the Brazilian Grand Prix, regardless of where team-mate Lewis Hamilton finishes.
However all season Rosberg's mind-set has been of the weekend at hand and not the long term gain, something which former Formula One driver Gerhard Berger thinks he should change this weekend.
"I believe Nico didn't want to risk anything in Mexico and was avoiding danger," said the Austrian who earlier this year helped German Rosberg negotiate his new contract.
"But now he can decide everything with a victory. If it was me, I would try to put it in the bag in Brazil. This will mean driving aggressively against Hamilton, who has more to lose from now on," Berger added.
1997 world champion Jacques Villeneuve also thinks Rosberg should come out victorious "Nico needs to be on pole and win the start," said the French Canadian. "And he needs to use Hamilton's statistics in Brazil against him, because he has never been able to win there."
Bahrain International Circuit - Winter testing