Whether he's sprinting across Wrigley Field mid-game as a college student with cops in pursuit, chasing down Hank Aaron on the field for an interview after Aaron broke Babe Ruth's home run record, running with the bulls in Pamplona, or hunkering down to face the daunting physical challenges of fighting leukemia, Sager is always ready to defy expectations, embrace life, and live it to the fullest. Here he shares incredible stories from his remarkable career-- and chronicles his heroic battle with acute myeloid leukemia (AML).