Legendary football coach and broadcaster John Madden has died, according to the NFL. Madden passed away unexpectedly on the morning of December 28. He was 85.

In 10 seasons coaching the Oakland Raiders, he led the the team to the playoffs eight times and never recorded a losing season. In January 1977, the team won Super Bowl XI, beating the Minnesota Vikings 32-14 under Madden's guidance.

He was inducted into the Pro Football Hall of Fame as a coach in 2006.

After his coaching career, Madden provided commentary for NFL games for 30 seasons for FOX, CBS, ABC and NBC. He won 16 Emmys as Outstanding Sports Personality/Sport Event Analyst.

His name is also attached to one of the best-selling sports video game series -- Madden NFL -- which began in 1988 as John Madden Football.

"Nobody loved football more than Coach," said NFL Commissioner Roger Goodell. "He was football. He was an incredible sounding board to me and so many others. There will never be another John Madden, and we will forever be indebted to him for all he did to make football and the NFL what it is today."

Madden was drafted by the Philadelphia Eagles in 1958 but he never played a down in the NFL after a knee injury in training camp.
Madden was drafted by the Philadelphia Eagles in 1958 but he never played a down in the NFL after a knee injury in training camp.
AP
Madden shouts in protest at a referee's call during a game in 1970. The year prior, the Oakland Raiders made Madden the head coach.
Madden shouts in protest at a referee's call during a game in 1970. The year prior, the Oakland Raiders made Madden the head coach.
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Madden talks with other Oakland Raiders in 1974 ahead of their bout with the Pittsburgh Steelers for the AFC Championship.
Madden talks with other Oakland Raiders in 1974 ahead of their bout with the Pittsburgh Steelers for the AFC Championship.
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Madden holds the game ball high in the air as he rides the shoulders of Raiders players following a victory in 1974.
Madden holds the game ball high in the air as he rides the shoulders of Raiders players following a victory in 1974.
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Madden coached the Oakland Raiders for 10 seasons.
Madden coached the Oakland Raiders for 10 seasons.
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Madden cheers from the sideline as running back Clarence Davis races down the field during Super Bowl XI in 1977.
Madden cheers from the sideline as running back Clarence Davis races down the field during Super Bowl XI in 1977.
AP
Madden celebrates with his team after the Raiders won Super Bowl XI in 1977. It was Madden's lone Super Bowl win of his career.
Madden celebrates with his team after the Raiders won Super Bowl XI in 1977. It was Madden's lone Super Bowl win of his career.
Dennis Desprois/Getty Images
Madden walks with his wife, Virginia, and their two sons Mike, left, and Joe onto the field in Oakland for a rally in 1977 to celebrate the Raiders' Super Bowl win.
Madden walks with his wife, Virginia, and their two sons Mike, left, and Joe onto the field in Oakland for a rally in 1977 to celebrate the Raiders' Super Bowl win.
AP
Madden smiles while sitting on his bus.
Madden smiles while sitting on his bus.
Sporting News/Getty Images
Madden talks with the media in 1979.
Madden talks with the media in 1979.
Focus On Sport/Getty Images
Madden interviews "Mean" Joe Greene of the Pittsburgh Steelers in 1980. Following his career with the Raiders, Madden turned his talents to broadcasting.
Madden interviews "Mean" Joe Greene of the Pittsburgh Steelers in 1980. Following his career with the Raiders, Madden turned his talents to broadcasting.
AP
Madden talks football strategy at UC Berkeley in 1980.
Madden talks football strategy at UC Berkeley in 1980.
Digital First Media News Group/Oakland Tribune/Getty Images
Madden and Pat Summerall, his longtime broadcast partner, call a game between Dallas and Washington in 1988.
Madden and Pat Summerall, his longtime broadcast partner, call a game between Dallas and Washington in 1988.
Herb Weitman/USA Today Sports
Madden talks football in 1995.
Madden talks football in 1995.
Al Messerschmidt/AP
Green Bay Packers quarterback Brett Favre, left, and defensive end Reggie White, right, visit with Madden in 1997.
Green Bay Packers quarterback Brett Favre, left, and defensive end Reggie White, right, visit with Madden in 1997.
Vernon Biever/AP
Al Michaels and Madden prepare for a Monday Night Football broadcast in 2002.
Al Michaels and Madden prepare for a Monday Night Football broadcast in 2002.
Craig Sjodin/ABC/Walt Disney Television/Getty Images
Madden speaks during his enshrinement into the Pro Football Hall of Fame in Canton, Ohio, in 2006.
Madden speaks during his enshrinement into the Pro Football Hall of Fame in Canton, Ohio, in 2006.
Mark Duncan/AP
NFL commissioner Roger Goodell, left, and Madden laugh while riding in Madden's bus between pre-season NFL camps in 2010.
NFL commissioner Roger Goodell, left, and Madden laugh while riding in Madden's bus between pre-season NFL camps in 2010.
Rob Carr/AP
Madden poses for a photograph at his Goal Line Productions facility in Pleasanton, California, in 2010. Madden's name is attached to one of the best-selling sports video game series -- Madden NFL -- which began in 1988 as John Madden Football.
Madden poses for a photograph at his Goal Line Productions facility in Pleasanton, California, in 2010. Madden's name is attached to one of the best-selling sports video game series -- Madden NFL -- which began in 1988 as John Madden Football.
Martin Klimek/Zuma
Madden lights a flame in honor of late Oakland Raiders owner Al Davis during halftime of a Raiders game in 2011. Davis hired Madden to coach the Raiders in 1969.
Madden lights a flame in honor of late Oakland Raiders owner Al Davis during halftime of a Raiders game in 2011. Davis hired Madden to coach the Raiders in 1969.
Kevin Terrell/AP