Buddy Ryan dead: Former NFL coach dies aged 82

Ryan coached in the NFL for 26 seasons and became an influential defensive coordinator

Buddy Ryan died at the age of 82 (Getty)

Former NFL coach Buddy Ryan has died at the age of 82, his agent James Solano confirmed on Tuesday.

Ryan coached in the NFL for 26 seasons and earned a reputation as an influential defensive coordinator after forging one of American football’s top defense strategies.

Vital to Super-Bowl winners New York Jets in 1968, as a member of the defensive staff, he later aided Mike Ditka to help the Chicago Bears defeat New England Patriots in Super Bowl XX.

Aside from his stay in Chicago, Ryan also operated as a defensive coordinator for Minnesota Vikings and Houston Oilers. Ryan's vaunted "46 defense" was at the centre of all he did during a legendary career.

Ryan earned a 55–55–1 record in his seven seasons as a head coach. He suffered a stroke in his later life while also battling against cancer before becoming confined to a wheelchair.

“Buddy was a legend in our league in so many ways," the Buffalo Bills said in a statement issued on Tuesday.

“His defenses were innovative and he was a master at putting his talented and tough players in a position to succeed. He was a real game changer and much of his philosophies and defensive tactics are still utilized effectively by teams today.

“Buddy's influence will be carried on by defensive coaches for generations to come, but none more so than by Rex and Rob. Our heartfelt thoughts and prayers are with the Ryan family today.”