Here's the Wiki on Jim Jensen. Sounds a lot like Hill:
Nicknamed "Crash", he played 12 seasons in Miami where his best years came while teamed with quarterback Dan Marino and legendary coach Don Shula.[1] He was reportedly nicknamed "Crash" by Howard Cosell. As a rookie, Jensen was a quarterback was on the kickoff team, and obviously caught Cosells eye to be tagged Crash Jensen.
Jensen wore jersey # 11 because he entered the league as a quarterback. After Marino was selected in the 1983 NFL Draft, it became evident that Jensen would need to find another way to survive on the Dolphins roster. He became a human Swiss army knife, with a knack for making tackles on punt and kickoff coverages and converting third down opportunities as a running back or wide receiver in the offensive set with Marino.