The culmination of these dozens of hours of punishing drills is a final totaling eight minutes in thering. Each fight is two minutes, plus a minute or so for strutting and another 30 seconds betweenrounds.

Training started early summer. Fighters were selected halfway through. The 23 chosencontestants, including accountants, editors, researchers and engineers, joined the Brawl on theWall event.

On the final night, Green is jumpy and energetic as he awaits hismoment in the spotlight.

He seems nervous but insists he isn't. He says he knows he'll dowell.

"I'm not going to die," he says.

"I know I've been practicing a lot. This is the reward - puttingeverything I've learned on the line."

The bell rings. The fight begins.

The crowd roars as punches fly.

Someone shouts: "Sam! Sam! Sam!"

The final bell rings. Green steps out of the ring.