Mixed martial arts, or MMA, has a long history since it includes techniques from older fighting styles like tae kwon do, muay thai, and Greco-Roman wrestling. But the popular sport is truly a modern invention that may result in blood, sweat, and tears. Readers learn about the fearless fighters who enter the cage for each bout, as well as MMA history and the formation of the UFC. MMA safety and rules are emphasized, including the need for specific training and great physical fitness. Full-color images highlight the intensity and drama of bouts for both the fighters and the crowd.