As a younger man, Matthew Polly traveled to the Shaolin Temple in China and spent two years training with the monks who had invented the ancient art of kung fu. Fifteen years later, his weakness for Chinese takeout and Jack Daniel s had taken its toll. Firmly into middle age and far removed from his past athletic triumphs, Polly decided to risk it all one last time. Out of shape and over the hill, he jumped headlong into the world of MMA.

In Tapped Out, Polly chronicles his...