Fox broadcasters Pat Summerall, left, and John Madden stand in the FOX broadcast booth at the Louisiana Superdome before Super Bowl XXXVI in New Orleans on Feb. 3, 2002.

Oakland Raiders quarterback Ken Stabler, right, talks with coach John Madden in Oakland, Calif. on Jan. 4, 1977.

Oakland Raiders head coach John Madden on the sideline during the closing seconds of the Raiders 32-14 victory over the Minnesota Vikings in Super Bowl XI on January 9, 1977 at the Rose Bowl in Pasadena, California.

Former Oakland Raiders head football coach John Madden talks about being named as a member of the NFL Hall of Fame class of 2006,in Detroit, in this Feb. 4, 2006 photo.

From left in front, NBC Sports chairman Dick Ebersol, analyst John Madden, and play-by-play commentator Al Michaels, with, from left in rear, co-host Bob Costas and analysts Jerome Bettis and Sterling Sharpe appear for the upcoming NBC sports show "Football Night In America" at the Summer Television Critics Association press tour Saturday, July 22, 2006, in Pasadena, Calif.

Former Oakland Raiders coach John Madden, right, puts his arm around Raiders owner Al Davis after Davis introduced Madden for enshrinement into the Pro Football Hall of Fame, Saturday, Aug. 5, 2006, in Canton, Ohio.

John Madden, left, and Jerome Bettis, right, attend the NBC All-Star Party Tuesday, July 17, 2007, in Beverly Hills, Calif.

Quarterback Peyton Manning #18 (left) of the Indianapolis Colts talks to television color analyst John Madden before the game against the San Diego Chargers at Qualcomm Stadium on November 11, 2007 in San Diego, California. The Chargers defeated the Colts 23-21.

John Madden stands on the Dallas Cowboys sidelines during pregame before their game against the Green Bay Packers at Lambeau Field on September 21, 2008 in Green Bay, Wisconsin. The Cowboys defeated the Packers 27-16.

Oakland Raiders head coach John Madden and quarterback Daryle Lamonica during a 1973.

Oakland Raiders head coach John Madden during a 45-17 win over the Los Angeles Rams on October 29, 1972 at Oakland Coliseum in Oakland, California.

Oakland Raiders head coach John Madden, elected to the Pro Football Hall of Fame class of 2006, cheers on his team circa the mid-1970s.

Oakland Raiders head coach John Madden, elected to the Pro Football Hall of Fame class of 2006, circa the mid-1970s.

Oakland Raiders linebackers coach John Madden, later to be head coach, in 1967. Madden was elected to the Pro Football Hall of Fame class of 2006.

Oakland Raiders Hall of Fame head coach John Madden in 1977.

Former NFL coach John Madden rides in his bus from the Baltimore Ravens football camp to the Washington Redskins camp, Wednesday, Aug. 4, 2010, in Maryland.

Hall of Fame coach John Madden speaks during the Prilosec Madden Most Valuable Protectors press conference at the Super Bowl XLV media center in the Dallas Sheraton in Dallas, Texas on February 3, 2011.

John Madden waves to the fans before lighting a flame in the honor of late Oakland Raiders owner Al Davis during halftime of the Raiders NFL game against the Cleveland Browns on October 16, 2011. The Raiders defeated the Browns 24-17.

Former NFL football player John Madden is introduced during the induction ceremony at the Pro Football Hall of Fame Saturday, Aug. 3, 2013, in Canton, Ohio.

Former Oakland Raiders head coach John Madden speaks about former quarterback Ken Stabler, pictured at rear, at a ceremony honoring Stabler during halftime of an NFL football game between the Raiders and the Cincinnati Bengals in Oakland, Calif., Sunday, Sept. 13, 2015.

Philadelphia Eagles Tackle John Madden on July 29, 1959 in Hershey, Pennsylvania.

Former Oakland Raiders coach John Madden waves during a ceremony honoring former punter Ray Guy's induction into the Pro Football Hall of Fame, during halftime of an NFL game between the Raiders and the Kansas City Chiefs in Oakland, Calif., Thursday, Nov. 20, 2014.

Coach John Madden of the Oakland Raiders protests a second quarter penalty called on his team in American Football Conference playoff game in Oakland, Dec. 22, 1973. A roughing the passer penalty brought this protest from Madden.

Oakland Raider coach John Madden (L) puts his arm around Coach Don Shula of the Miami Dolphins just after the Dolphins won the AFC championship in the Orange Bowl in Miami, Florida on Dec. 30, 1973. Miami beat Oakland 27-10.

Oakland Raiders quarterback Ken Stabler (12), left, rubs his hands to warm them as he talks to Raiders coach John Madden on the sideline during AFC championship game in Pittsburgh, Jan. 4, 1976. Temperatures are in the teens for the game. Stabler wore mittens at times to keep his hands warm.

An unhappy coach John Madden of the Oakland Raiders complains to an official as they leave the field at halftime of the AFC championship game, Jan. 1, 1978 in Denver. Madden was unhappy after one of his stars, Fred Biletnikoff was injured on a pass play.

These were the expressions of Oakland Raiders coach John Madden as he talked with newsmen after announcing his retirement, Thursday, Jan. 5, 1979 in Oakland. "I'm never going to coach again," said Madden.

Former Oakland Raiders head coach John Madden, now a commentator for CBS Television practices the electronic charting device 'Telestrator' that he will be using to illustrate plays during the Super Bowl at the Silverdome in Pontiac, Mich. on Jan. 21, 1982.

Former Raiders head coach and announcer John Madden during the NFL regular season game between the Denver Broncos on Thursday, Dec. 06, 2012 in Oakland, Calif.

NBC Sports television announcer John Madden answers questions from the media during the NBC Sports Personality Press Conference at the Super Bowl XLIII Media Center located in the Tampa Convention Center in downtown Tampa in preparation of Super Bowl XLIII on January 27, 2009 in Tampa, Florida.

Sportscaster John Madden speaks during an NFL on Fox news conference in Los Angeles on Friday, July 15, 1994.