As founder and president of EXOS (formerly Athletes' Performance), Mark Verstegen has trained the world’s top athletes in sports including the NFL, Major League Baseball, and worldwide soccer powers, along with the most elite “tactical athletes”—U.S. Special Operations Forces personnel.More than a decade ago, Verstegen’s groundbreaking book Core Performance revolutionized the fitness industry and made core conditioning and functional training mainstream. In his just-released book, Every Day is Game Day, Verstegen presents his most hardcore program yet: a demanding system that challenges readers to perform at the highest level in all aspects of their lives.Fitness Buff Show host Pete Williams has had the honor of writing both books (along with four others) with Verstegen, one of the world's leading performance coaches. In this episode, they reveal how athletes can improve their performance on and off the field. Life isn't just about practice, after all. Every Day is Game Day.