Green Bay Packers fans Steve Tate, left, Adam Dillman wait to cross a snowy street near the NFL Super Bowl media center during a winter storm, Friday, Feb. 4, 2011, in Dallas. (AP Photo/Matt Slocum)

Pittsburgh Steelers quarterback Ben Roethlisberger balances a ball on his hand during practice on Friday, Feb. 4, 2011, in Fort Worth, Texas. (AP Photo/Mark Humphrey)

Members of the Green Bay Packers prepare to take their team photo, Friday, Feb. 4, 2011, in Dallas. (AP Photo/Eric Gay)

Pittsburgh Steelers defensive end Brett Keisel, center, stretches during practice on Friday, Feb. 4, 2011, in Fort Worth, Texas. (AP Photo/Mark Humphrey)

Skyler New, of Tampa, Fla., makes a snowball as he plays outside the NFL football Super Bowl XLV Media Center in Dallas, Friday, Feb. 4, 2011. (AP Photo/David J. Phillip)

Pittsburgh Steelers' Ryan Clark wears a wig during media day for NFL football Super Bowl XLV, Tuesday, Feb. 1, 2011 in Arlington, Texas. (AP Photo/Mark Humphrey)

A worker shovels snow near the Super Bowl media center during a winter storm, Friday, Feb. 4, 2011, in Dallas. (AP Photo/Matt Slocum)

The Vince Lombardi Trophy is displayed with the team helmets before a news conference at the NFL football Super Bowl XLV Media Center in Dallas, Friday, Feb. 4, 2011. (AP Photo/David J. Phillip)

Green Bay Packers head coach Mike McCarthy poses with the Vince Lombardi Trophy after a news conference at the NFL football Super Bowl XLV Media Center in Dallas, Friday, Feb. 4, 2011. (AP Photo/Matt Slocum)

Pittsburgh Steelers head coach Mike Tomlin poses with the Vince Lombardi trophy after a news conference at the NFL football Super Bowl XLV Media Center in Dallas, Friday, Feb. 4, 2011. (AP Photo/Matt Slocum)

Clark Chandler sits outside of Cowboys Stadium with his pet sheep "Jack", Thursday, Feb. 3, 2011, in Arlington, Texas. Chandler painted his sheep green in support of the Green Bay Packers. (AP Photo/Charlie Riedel)

Lights are reflected on an icy pavement outside of Cowboys Stadium where the NFL football Super Bowl XLV will be played between the Green Bay Packers and the Pittsburgh Steelers Thursday, Feb. 3, 2011. (AP Photo/Charlie Riedel)

The Black Eyed Peas Fergie points to the shaved head of Apl.de.ap during a news conference at the NFL football Super Bowl XLV Media Center Thursday, Feb. 3, 2011, in Dallas. (AP Photo/David J. Phillip)

Green Bay Packers coach Mike McCarthy answers a question during a news conference, Thursday, Feb. 3, 2011, in Irving, Texas. (AP Photo/Eric Gay)

Pittsburgh Steelers linebacker Stevenson Sylvester stretches during practice on Thursday, Feb. 3, 2011, in Fort Worth, Texas. (AP Photo/Mark Humphrey)

Green Bay Packers' Clay Matthews wears a Cheesehead during media day for NFL football Super Bowl XLV Tuesday, Feb. 1, 2011, in Arlington, Texas. (AP Photo/David J. Phillip)

Green Bay Packers' B.J. Raji is seen on the camera of an iPhone during media day for NFL football Super Bowl XLV Tuesday, Feb. 1, 2011, in Arlington, Texas. (AP Photo/David J. Phillip)

Pittsburgh Steelers' Casey Hampton answers a question during media day for NFL football Super Bowl XLV, Tuesday, Feb. 1, 2011 in Arlington, Texas. (AP Photo/Eric Gay)

In a photo taken with a fisheye lens, Pittsburgh Steelers' Ben Roethlisberger looks around Cowboys Stadium during media day for NFL football Super Bowl XLV, Tuesday, Feb. 1, 2011 in Arlington, Texas. (AP Photo/Charlie Riedel)

Green Bay Packers' Aaron Rodgers (12) goes through drills during practice, Wednesday, Feb. 2, 2011 in Dallas. (AP Photo/Eric Gay)

Pittsburgh Steelers' Troy Polamalu plays a game during media day for NFL football Super Bowl XLV, Tuesday, Feb. 1, 2011, in Arlington, Texas. (AP Photo/Mark Humphrey)

Pittsburgh Steelers quarterback Charlie Batch (16) does his own interview with fellow quarterback Byron Leftwich, right, about who is the team's best table tennis player during a news conference on Wednesday. (AP Photo/Mark Humphrey)

A row of Green Bay Packers helmets is seen during the team's practice, Wednesday, Feb. 2, 2011, in Dallas. (AP Photo/Eric Gay)

Pittsburgh Steelers head coach Mike Tomlin listens to a question during a news conference on Monday, Jan. 31, 2011, in Dallas. (AP Photo/Mark Humphrey)

Green Bay Packers' Aaron Rodgers (12) answers questions during a news conference, Thursday, Feb. 3, 2011, in Irving, Texas. (AP Photo/Eric Gay)

Pittsburgh Steelers linebacker Jason Worilds wears a sombrero as he does an interview with television reporter Oliver Cruz, right, during a news conference on Wednesday, Feb. 2, 2011, in Fort Worth, Texas. (AP Photo/Mark Humphrey)

Green Bay Packers' Greg Jennings, center, talks to the media, Thursday, Feb. 3, 2011, in Irving, Texas. (AP Photo/Eric Gay)

Pittsburgh Steelers defensive end Brett Keisel answers questions during a news conference on Wednesday, Feb. 2, 2011, in Fort Worth, Texas. (AP Photo/Mark Humphrey)

Yvette Hamby braves freezing temperatures outside Cowboys Stadium as she works to clear a path into the stadium for media day for NFL football Super Bowl XLV Tuesday, Feb. 1, 2011, in Arlington, Texas. (AP Photo/David J. Phillip)

Fe Gillies, of Australia, holds onto a sign to keep from slipping on ice after posing for photos in front of a giant Super Bowl XLV sign in Dallas, Tuesday, Feb. 1, 2011. (AP Photo/LM Otero)

A mound of ice is seen outside Cowboys Stadium during preparations for NFL football Super Bowl XLV Tuesday, Feb. 1, 2011, in Arlington, Texas. (AP Photo/Eric Gay)

Pittsburgh Steelers' Ben Roethlisberger give a thumbs up after landing at Dallas/Fort Worth International Airport for NFL football Super Bowl XLV Monday, Jan. 31, 2011, in Dallas. (AP Photo/David J. Phillip)

A pilot holds a shirt out of the cockpit window of the Green Bay Packers charter as they arrive at Dallas/Fort Worth International Airport for NFL football Super Bowl XLV Monday, Jan. 31, 2011, in Dallas. (AP Photo/Morry Gash)