I think its Brian Dawkins, for the Denver Broncos, he turned 37 on october 13, 1973. he's playing his 15th season.
Barry Sanders
1972 Joe Greene, Pittsburgh Steelers Defensive tackle
1974 Joe Greene, Pittsburgh Steelers Defensive tackle
Lawrence Taylor is widely regarded as the most dominant defensive player in history.
Ed Reed of the Baltimore Ravens with 9.
The NFL Defensive Player of the Year for 2010 is Troy Polamalu.
Shawne Merriman
Barry Sanders
Pittsburgh Steelers linebacker James Harrison won the 2008 NFL Defensive Player of the Year Award.
Pittsburgh Steelers strong safety Troy Polamalu won the 2010 NFL Defensive Player of the Year Award.
Danny Cook
usc
blanda
That was defensive tackle Alan Page of the Minnesota Vikings in 1971.
1972 Joe Greene, Pittsburgh Steelers Defensive tackle
2006 Jason Taylor, Miami Dolphins, Defensive end
1990 Bruce Smith, Buffalo Bills Defensive end