MotoGP: Amazing overtakes set up Marc Marquez Moto2 win
Moto2 world champion Marc Marquez wins the 2012 Valencia Grand Prix with a stunning ride from the back of the grid, making a series of overtaking manoeuvres on the first lap.
Marquez moved up from 33rd to 11th in 14 turns, before closing down a nine-second gap to catch leader Julian Simon, who came second.
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