Australia's Damien Hooper earned a narrow win against American Marcus Browne on Monday during opening-round boxing action in the men's light heavyweight competition at the London Olympics.

Hooper, ranked No. 2 in the world, had a tough test against Browne but passed it in a 13-11 decision. China's Meng Fanlong, the world No. 3, routed Morocco's Ahmed Barki to advance.

The men's flyweight (52kg) competition also began Monday, when Cuban Robeisy Ramirez Carrazana won against Japan's Katsuaki Susa. Carrazana was last year's Pan-American champion.

The top six seeds in the both draws have byes into the second round.