...PITTSBURGH - OCTOBER 25: Wide receiver Sidney Rice #18 of the Minnesota Vikings is tackled by safety Troy Polamalu #43 of the Pittsburgh Steelers after catching a pass during a game at Heinz Field on...

30 November 2008 Pittsburgh Steelers defensive back Troy Polamalu (43) is seen on the field during the NFL football game against the New England Patriots...

...NOVEMBER 9: Brandon Marshall #15 of the Denver Broncos leaps up to attempt a reception as Troy Polamalu #43 of the Pittsburgh Steelers defends at Invesco Field at Mile High on November 9, 2009...

Denver Broncos Brandon Marshall (15) tackles Pittsburgh Steelers' Troy Polamalu after Polamalu intercepted a pass by Kyle Orton in the fourth quarter of the NFL football...

...4, 2009 in Denver, Colorado. The Broncos defeated the Cowboys 17-10. NASHVILLE, TN - DECEMBER 21: Troy Polamalu #43 of the Pittsburgh Steelers lines up against the Tennessee Titans at LP Field on December...

Pittsburgh Steelers Troy Polamalu, left, talks with Ryan Clarks against the Detroit Lions during the fourth quarter of an NFL...

PITTSBURGH - SEPTEMBER 10: Defensive back Troy Polamalu #43 of the Pittsburgh Steelers runs back in pass coverage against the Tennessee Titans at Heinz...

Sep 20, 2009; Chicago, IL, USA; Pittsburgh Steelers safety Troy Polamalu watches from the sidelines during the first half against the Chicago Bears at Soldier Field. The...

PITTSBURGH - SEPTEMBER 10: Safety Troy Polamalu #43 of the Pittsburgh Steelers looks on from the field during a game against the Tennessee...

Sep 10, 2009; Pittsburgh, PA, USA; Pittsburgh Steelers safety Troy Polamalu (43) intercepts a pass in front of Tennessee Titans wide receiver Kenny Britt (18) during the...

PITTSBURGH - DECEMBER 28: Safety Troy Polamalu #43 of the Pittsburgh Steelers moves into position during the game against the Cleveland Browns on...

...complete with a wig that makes it clear who's playing the role of Steelers safety Troy Polamalu for the scout team

FILE - In this Aug. 3, 2009 photo, Pittsburgh Steelers safety Troy Polamalu smiles before the start of the morning practice session at their NFL football training camp in...

Pittsburgh Steelers' Troy Polamalu during a NFL pre-season game against the Arizona Cardinals in Pittsburgh, Thursday, Aug. 13, 2009...

Zoom Gallery: NFL's Best Hair-Do's

High res photos of the best hair cuts in the history of the NFL.