Daniels, born November 9, 1982, is 6 feet 3 inches (1.91 meters) tall and weighs 245 pounds (111 kg). The 37-year-old is a native of Naperville, Illinois, and attended Naperville Central High School.
He began playing football in high school and led his team to an IHSA Class 6A State Championship in 1999. He was named an All-American by both Prep Football Report and PrepStar. Daniels was also involved in basketball and track and field.
While studying atmospheric and oceanic sciences at the University of Wisconsin-Madison, he continued to play football. He began his career as a quarterback for the Wisconsin Badgers before moving on to flanker, split end, wingback, and tight end.