What happened: Green disclosed the early-onset condition during an appearance on Go Long. Reaction across NFL circles centered on support for the former running back and concern about the physical toll of his career.
Why it matters: The diagnosis renews attention on neurological health among retired football players. Green entered the Packers Hall of Fame in 2014 after eight seasons with the franchise.
By the numbers: From 2000-04, Green led the NFL with 6,848 rushing yards and 9,036 total yards.
What to watch: Watch for further health updates and any advocacy plans from Green.