McLaren's Lewis Hamilton [Images] will drop 10 places on the French Grand Prix starting grid after a pit lane collision with Ferrari's [Images] Kimi Raikkonen [Images] in Canada [Images] on Sunday.

Race stewards imposed the penalty after both drivers were forced to retire from a race that was eventually won by BMW [Images] Sauber's Robert Kubica.

• Hamilton goes from hero to zero

World champion Raikkonen had stopped at the red light at the end of the pit lane on lap 20, with Polish driver Robert Kubica waiting alongside, after they had made their first stops while the safety car was deployed.

Hamilton failed to brake in time, the Briton piling hard into the back of the stationary Ferrari with German driver Nico Rosberg then shunting the McLaren and breaking his Williams' front wing.

The French Grand Prix, round eight of the 18-race championship, will be held at Magny Cours on June 22.

Hamilton is second in the championship, four points behind Kubica and level with Ferrari's Brazilian Felipe Massa [Images]. The 23-year-old Briton was third in France [Images] last year behind Raikkonen and Massa.