Moto2: Marquez, Kallio collide in final practice

The early stages of Saturday's final Moto2 practice for the Japanese Grand Prix saw a controversial clash between championship leader Marc Marquez and Mika Kallio.

Kallio overtook Marquez on the inside at Motegi's Turn Seven left-hander and was slightly in front of Marquez heading into the following right-hand corner.

However the pair collided as Kallio turned in - Marquez's front wheel stabbing the centre of the Finn's Kalex and pushing him into a lowside, which then became a highside when his sliding rear wheel gripped.

Kallio was left visibly fuming, but apparently unhurt - his Marc VDS bike having barrel-rolled to a halt beside him. 2013 MotoGP rider Marquez remained on two wheels and rejoined the track after running through the gravel.

Marquez holds a hefty 48-point title lead over Pol Espargaro with four rounds to go.