Terrifying MotoGP crash leaves bike engulfed in flames

Alex Marquez, younger brother of MotoGP world champion Marc Marquez has somehow walked away unscathed from a terrifying cash that left his bike engulfed in flames.

The 22-year-old came unstuck in the closing moments of a Moto2 practice in Japan on Friday as he was sent hurtling head-first over the handlebars when he lost control off the bend.

After rolling heavily, the four-time world champion came to a halt off the tarmac as his bike combusted in flames.

Marquez attempted to hobble over to his bike before alarmingly collapsing on the nearby grass.

Somehow, he walked away from the ordeal unscathed with only minor cuts and bruises.

MotoGP doctors have assessed cleared the star to continue racing.