Tokyo (AP) -- A French super heavyweight boxer sat on the Olympic ring apron in protest for about an hour after he was disqualified from his quarterfinal bout because of an intentional head butt.

Mourad Aliev reacted with outrage when referee Andy Mustacchio disqualified him with four seconds left in the second round Sunday. The referee determined Aliev had intentionally used his head to clash with British opponent Frazer Clarke, who had significant cuts near both of his eyes.

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