McCann was born to Howard and Sherry McCann in Atlanta, Georgia. At the time, his father worked as an assistant baseball coach for the Georgia Bulldogs Baseball under Steve Webber and his mother worked at Athens Regional Hospital. Both of his parents attended Oswego High School in Oswego, New York, where they would later be inducted into the school's athletics hall of fame. McCann's father played college baseball at Mississippi State. Howard McCann would eventually become the head coach at Marshall.