NFL commissioner Roger Goodell saluted legendary Pittsburgh Steelers coach Chuck Noll.
Noll passed away from natural causes Friday night.
Noll is the only NFL coach to win four Super Bowls, building the Steelers into one of the top football teams in NFL history.
"What set Chuck Noll apart was his remarkable ability as a teacher," Goodell said in a statement. "His subject was football and his students became four-time Super Bowl champions. Coach Noll's quiet leadership produced extraordinary results that deeply inspired players, coaches and fans.
"He always put the team, his players, and the game first. His legacy of excellence will forever be an important part of the history of the Steelers and the NFL. We extend our condolences to Chuck's wife Marianne, his son Chris, the Noll family, and the Steelers organization."
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Aaron Wilson covers the Ravens for The Baltimore Sun
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