Cape Town - Bernie Ecclestone has told reigning world champion Lewis Hamilton to stop "moaning".
Although the Mercedes driver has been generally more cheerful in 2016, the F1 supremo was apparently referring to Hamilton saying recent stewards decisions remind him of an "a------" karting official in his past.
READ: Top F1 teams call for Bernie to be replaced
Hamilton can retain championship
Ecclestone told London's Times newspaper: "I told him to get on with it because there are 17 races left.
"It is not the end of the world. He wasn't moaning when he was winning, was he? Lewis has to learn," the 85-year-old Briton added.
"He is still going to win this world championship. I absolutely believe that," said Ecclestone.
Rosberg's riding a wave
Canada's 1997 world champion Jacques Villeneuve, however, is not so sure, arguing that Nico Rosberg currently looks strong enough to stay ahead of Hamilton.
READ: Mercedes deny Rosberg 'favouritism' claims
The Canadian told Russia's Championat: "This year he (Rosberg) is more hungry for success than Lewis is. I think that makes a difference in their results at the moment.
"Of course Hamilton still wants to win, but my feeling is that success is no longer as important to him as before, for some reason."
Villeneuve concluded: "But I'm sure he will wake up at some point. He will start to be criticised and will lose fans, which he won't like."