sanjay gupta has derek coleman's story. >> reporter: derek coleman is playing in the nfl for the topas ranked the number two fullback in the nation by espn. next stop, ucla, where he was a running back for four years, and now the 23-year-old is showing his versatility as a fullback for the seahawks, scoring his first touchdown in the pros earlier this month. he's gotten this far with lots of hard work and by overcoming something only two other players in the entire nfl have. he is legally deaf, the result of a rare genetic disorder. >> basically i lost my hearing when i was 3. i've had hearing aids ever since. >> reporter: how does he do this? his skull cap keeps his hearing aids in place and? >> i can read lips and i can read lips very well, so what i do is you know, when i can't hear something i'll always go and make sure i'm looking at the person, the person, the quarterback or whoever, they look at me. successful people, in my opinion, they always find a way and you really want to be successful, you have to find a way. >> reporter: dr. somethinging, c sanjay gupta, cnn, reporting