Before coming to ESPN, Mortensen wrote for the Atlanta Journal-Constitution (1983-1990), covering the Falcons, the Braves and the NFL, and he won the George Polk Award in 1987 for his reporting. He also was one of the first writers hired by editor Frank Deford at the sports daily The National, working there from 1989 to 1990 before coming to ESPN.

“I join the immeasurable number of hearts across the nation, in journalism and the sports community, as we mourn Chris Mortensen,” Falcons owner Arthur Blank said in a statement. “I’m grateful to have had the privilege of knowing Chris through his incredible work beginning at his days at the Atlanta Journal Constitution and like so many, being blessed by his professional excellence and personal grace through the many years that have followed. I considered Chris a personal hero of my mine and it is truly hard to imagine sports journalism without him.

“His ability to take on life’s obstacles with grit and determination was always truly inspiring and his enormous impact on so many, me included, will live on through this work and unwavering friendships. I send my deepest condolences to Chris’ family and friends, and pray they find peace in the honorable legacy and positive influence that Chris leaves behind.”

Mortensen also was a columnist for The Sporting News, a contributor to Sport magazine and a consultant with CBS Sports’ “NFL Today” (1990).

“Chris will forever be part of the NFL family. Loved by so many, he was a brilliant voice for the game and as passionate and talented as there has ever been,” Cowboys owner Jerry Jones said in a statement. “He will be deeply missed and we’re grateful for the special memories and legacy Chris leaves us.”

Mortensen, who began his journalism career at the South Bay (California) Daily Breeze in 1969, won the National Headliner Award for investigative reporting in all categories in 1978. He received 18 awards in journalism and was nominated for two Pulitzer Prizes in his career.

He also was the author of the book “Playing for Keeps: How One Man Stopped the Mob from Sinking its Hooks into Pro Football.”

Mortensen, a native of Torrance, California, was born Nov. 7, 1951. He attended El Camino College before serving two years in the Army.

He is survived by his wife, Micki, and son, Alex.