Just the Chuck Bednarik hit alone probably caused CTE. Frank said the Bednarik hit didn't cause the concussion but his head bouncing off the rock hard, frozen Yankee Stadium turf. Count Hall of Famer Frank Gifford as the oldest of the NFL players suffering with lasting brain injuries. The New York Giants star was diagnosed with Chronic Traumatic Encephalopathy (CTE), the crippling disease linked to multiple concussions and head trauma, the Gifford family announced Wednesday. The gridiron great died in August at age 84. Gifford, who retired in 1964, famously missed an entire season after a savage hit from Philadelphia Eagles linebacker Chuck Bednarik left him unconscious on the field in 1960. He returned to the Giants and played three more seasons after sitting out the entire 1961 campaign. Wife Kathie Lee and other relatives, after much consideration, donated his brain for testing following the 12-year NFL veteran’s death. Gifford “experienced first-hand” the cognitive and behavioral symptoms linked to the CTE, a family statement said without providing details of his ailments.