Drivers told to keep tyre worries private

Leading Formula 1 drivers have been asked to stop criticising tyre supplier Pirelli, after a meeting with the sport's boss Bernie Ecclestone.

Lewis Hamilton, Fernando Alonso, Nico Rosberg and Sebastian Vettel, all four of whom have had problems with their car's tyres in the past, were all told not to voice their concerns.

"If any one of them has got problems, they should talk to the people making the problems," Ecclestone told reporters.

Ferrari driver Vettel was heavily critical of Pirelli after the Belgian race, having suffered a blowout at 200mph while on course for a podium finish.