Linebacker who made his NFL debut in 2002 for the Pittsburgh Steelers and won Super Bowls XL and XLIII with the team; selected in the 4th round of the 2002 NFL Draft.
He was a standout defensive player at the University of Michigan, where he was a first-team All-American in 2001.
In the 2005 AFC Championship Game he had a key 4th quarter interception that all but ended the game against the Denver Broncos.
He married Jonelle Massop on June 28, 2008.
He and safety Troy Polamalu helped lead a dominant Steelers defensive unit that propelled the team to two Super Bowl titles.