Nico Rosberg needs to break teammate Lewis Hamilton's momentum and put him under pressure if he is to stand a chance of fighting for this year's Formula 1 title.
That is the view of former world champion and Mercedes non-executive chairman Niki Lauda, who reckons all Rosberg needs is to beat Hamilton once in order for the Briton's confidence to take a hit.
"Nico has to break this run from Lewis, and put him under pressure," Lauda told Auto Motor und Sport.
"If he beats him just once, then the other one (Hamilton) will start to think about it."
Hamilton has won three of the first four races of the season, and the Briton has also started from pole position in all of them.
Rosberg has not beaten his teammate since last year's Brazilian Grand Prix.
Lauda believes the German driver should approach every race as if the championship was starting again.
"Nico has the hardest job imaginable. Lewis is in top form at the moment - he makes virtually no errors and his self-confidence is boundless," he added.
"He should forget the complicated explanations and just say 'I made a mistake'.
"Get the ballast out of your head and do your race as though the world championship is starting from scratch every time."