Former Pittsburgh Steelers linebacker Clark Haggans died Tuesday at the age of 46, according to the Pittsburgh Tribune-Review.
A spokesman for the Steelers confirmed the news but didn't disclose a cause of death.
Haggans spent his first eight years in the NFL in Pittsburgh. He appeared in 107 games, recording 332 tackles and 32.5 sacks. A fifth-round pick in the 2000 NFL draft, he started as a backup for the Steelers before emerging as a key piece of the defense.
One of Haggans' best individual years coincided with their return to the NFL summit.