John Cavan started with an underground fighting club in a small shed. Now he is the person who brought Conor McGregor to the top of the UFC. “A Life Without Rules” is John’s account of Conor. How did a bold guy with no skills, money, or discipline become one of the best fighters in the world? How many hours did Cavan and McGregor spend in the gym? How many times did Conor want to quit? The amazing story told from the first person will paint an amazing portrait of an ambitious, disciplined, and persistent man who simply doesn’t know how to give up.