DALLAS — Lee Roy Jordan, whose ferocious play in the 1960s and ’70s made him one of the most feared linebackers in college and the NFL and the dean of the Dallas Cowboys’ fabled Doomsday Defense, died Saturday in Dallas hospice of kidney failure, his son, David, said. He was 84.

Over a career in which he played an integral role in Bear Bryant’s first national championship at Alabama as well as the Cowboys’ first Super Bowl win, Jordan raised the standard of play with his relentless effort and preparation and by demanding the best from his teammates.

A five-time Pro Bowler, NFC Defensive Player of the Year and member of two all-time SEC teams as well as the Cowboys’ Silver Anniversary team, he was the first player inducted into the Ring of Honor by Jerry Jones in 1989.

In an era when mid

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