![20 December: Pittsburgh Steelers Willie Parker (39) runs with the football during the NFL football game between the Green Bay Packers and the Pittsburgh Steelers at Heinz Field in Pittsburgh, Pennsylvania. The 20 December: Pittsburgh Steelers Willie Parker (39) runs with the football during the NFL football game between the Green Bay Packers and the Pittsburgh Steelers at Heinz Field in Pittsburgh, Pennsylvania. The](https://c8.alamy.com/comp/DM4MHF/20-december-pittsburgh-steelers-willie-parker-39-runs-with-the-football-DM4MHF.jpg)
20 December: Pittsburgh Steelers Willie Parker (39) runs with the football during the NFL football game between the Green Bay Packers and the Pittsburgh Steelers at Heinz Field in Pittsburgh, Pennsylvania. The
![Dave Parker lives with Parkinson's disease as another Hall of Fame Class heads to Cooperstown without him Dave Parker lives with Parkinson's disease as another Hall of Fame Class heads to Cooperstown without him](https://andscape.com/wp-content/uploads/2018/01/gettyimages-52613624-e1516980380895.jpg)
Dave Parker lives with Parkinson's disease as another Hall of Fame Class heads to Cooperstown without him
![Pittsburgh Steelers running back Willie Parker (39) is hauled down at the end of a 45-yard run by Chicago Bears' Charles Tillman (33) in the first quarter of NFL action Sunday, Dec. Pittsburgh Steelers running back Willie Parker (39) is hauled down at the end of a 45-yard run by Chicago Bears' Charles Tillman (33) in the first quarter of NFL action Sunday, Dec.](https://c8.alamy.com/comp/2PDH18N/pittsburgh-steelers-running-back-willie-parker-39-is-hauled-down-at-the-end-of-a-45-yard-run-by-chicago-bears-charles-tillman-33-in-the-first-quarter-of-nfl-action-sunday-dec-11-2005-in-pittsburgh-the-run-set-up-the-steelers-first-touchdown-ap-photogene-j-puskar-2PDH18N.jpg)