Anaheim winner Justin Barcia wiped out fellow supercross star Martin Davalos on press day at San Diego, caught by the cameras of our pals at Motocross Action in their raw video.

Watch from around 7m 35 as Davalos angers Barcia by jumping towards him. Barcia instantly hits back and wipes out Davalos in the very next corner,

Ten at the end of the session (watch from around 12mins in) the duo have words about their little clash.