D'Qwell Jackson, as seen from over center, looks a bit like a young Ray Lewis in terms of intensity and focus

BALTIMORE, MD - NOVEMBER 19: Linebacker Ray Lewis #52 of the Baltimore Ravens jokes with quarterback Steve McNair #9 against the Atlanta Falcons at...

Zoom Gallery: Legendary NFL Linebackers

High res photos of the greatest linebackers to grace the gridiron.

Baltimore Ravens linebacker Ray Lewis, left, talks to Cleveland Browns running back Jamal Lewis after their NFL football game Monday, Nov...

Cleveland Browns running back Chris Jennings (34) is tackled by Baltimore Ravens linebacker Ray Lewis in the third quarter of an NFL football game Monday, Nov. 16, 2009, in Cleveland. (AP...

Baltimore Ravens linebacker Ray Lewis sitting on the bench during the preseason NFL football game in Baltimore, Thursday, Aug. 13, 2009...

...Titans receiver Justin Gage (12) tries to break free from the grasp of Baltimore Ravens linebacker Ray Lewis (52) in the fourth quarter of the AFC Divisional playoff game at LP Field. The Ravens...

CAPTION: Nov 16, 2008; East Rutherford, NJ, USA: Baltimore Ravens linebacker Ray Lewis (52) during the fourth quarter of the game against the New York Giants at Giants Stadium...

Former NFL quarterback Brett Favre, right, hugs Baltimore Ravens linebacker Ray Lewis as they leave the funeral service for Steve McNair in Hattiesburg, Miss., Saturday, July 11, 2009...

HATTIESBURG, MS - JULY 11: Baltimore Ravens player Ray Lewis (C) arrives for a funeral service for former NFL quarterback Steve McNair on July 11, 2009...

...Browns 28-10. (Photo by Scott Boehm/Getty Images) PITTSBURGH - JANUARY 18: Haloti Ngata #92 and Ray Lewis #52 of the Baltimore Ravens celebrate after Ngata recorded a sack in the first quarter against...

...Lee/Image of Sport-US PRESSWIRE n this Jan. 16, 2009, file photo, Baltimore Ravens linebacker Ray Lewis talks with reporters during a news conference in Owings Mills, Md. Ravens spokesman Kevin Byrne said...

Nov 30, 2008; Cincinnati, OH, USA; Baltimore Ravens linebacker (52) Ray Lewis eyes the Cincinnati Bengals offense at Paul Brown Stadium in Cincinnati, OH. The Ravens beat the...

BALTIMORE - SEPTEMBER 21: Ray Lewis #52 of the Baltimore Ravens celebrates after a defensive stop against the Cleveland Browns September 21...

1- This is an Oct. 26, 2008 file photo showing Baltimore Ravens linebacker Ray Lewis walking off the field after warm ups before the start a game against the Oakland Raiders...