A charity boxing competition for office professionals hones their fighting spirit inside and outsidethe ring. Eric Jou reports in Beijing.

The bell rings. Punches fly - first a jab. Then a hook. The bellsounds again, and the fight is over. It's finished in six minutes - sixshort minutes, following three long months of grueling training. Butgame designer Samuel Green says it was all worth it. Greenremoves his headgear and gloves, and pulls out his mouth guard.He receives a medal for the show he just put on. The decision isannounced. The crowd rages. Green lost, despite a majorcomeback near the end of Round 2. But he isn't upset. Green didn'tsign up for White Collar Boxing to win the competition. He did it toexperience something new.

Standing 1.78 meters tall and weighing 74 kilograms, Greendoesn't look like what most people expect of a boxer.

The video-game designer spends his days working on computersat a desk.
He had virtually no fighting experience before he signed up forWhite Collar Boxing.

"It's just a challenge," he says.

"It's something I've never done before. I like to get fit and test myself, and learn something new.I'm a game designer by profession. So I like getting into challenges and working out things. Thereare a lot of parallels between (video) games and sports."