The Pittsburgh Steelers selected Long in the fourth round (111th pick overall) of the 1984 NFL Draft, and he played for the Steelers from 1984 to 1991. During his eight NFL seasons, he played in 105 games, and started 89 of them.
He died in 2005 from drinking antifreeze. Doctors studied his brain later and believe that brain damage from his football career contributed to his depression and later suicide. He had previously attempted suicide in 1991, after testing positive for the NFL's steroid test.