If you're an older Bengals fans, then you know about Boomer Esiason's fight against cystic fibrosis. Boomer and his son Gunnar, who has cystic fibrosis, have raised over $100 million through the Boomer Esiason foundation and continue that fight today.
HBO Real Sports will feature his story and relationship with Frank Derod on Jan. 21 at 10 p.m. (ET).