Cliff Grassmick / Staff Photographer)
After five years in the NFL, it felt a bit odd for Tyrone McKenzie to sit in a classroom, load his books into a backpack and study for exams.
"Getting back on campus and walking around campus with a book bag was weird," he said. "After that first day, it just comes back."
The 30-year-old McKenzie is working toward a master's degree in education at the University of Colorado, but that's not the main reason he finds himself in Boulder.
A former college All-American and NFL Pro Bowler, McKenzie is entering his second season as a graduate assistant coach for the Colorado football team.