He was born in St. Louis, Missouri. At age twelve, Leeuwenberg was diagnosed with type 1 diabetes.[2] Leeuwenburg coauthored the book Yes I Can! Yes You Can! with Denny Dressman, an autobiography that focuses on his struggles with diabetes and his journey to the NFL.
Leeuwenburg currently works as a college football analyst on The mtn television network, of the NCAA Mountain West Conference. He is also an elementary school teacher at Colorado Academy, a high-achieving private K-12 school in Denver.[citation needed]
He is a coach at D evelyn high school.[citation needed]