Walter White, who played for the Chiefs, died April 10, 2019, the 100th day of the year.
He died before the start of the 100th NFL season, which will end with Super Bowl 54.
He died 100-days before his birthday.
White was 67-years-old. Blood Sacrifice = 67 (19th prime)
On May 4, or 5/4, another former Chief (as well as Packer and Cardinal), died.
He died 49-days after his birthday, or his 50th day of his age.
NFL = 49; Super Bowl = 49 / 50
Chiefs = 50; Kansas City = 50
Related, the death of Gunther Cunningham:
Lane was 77-years-old. Green Bay = 77
Bart Starr died 77-days before the Packers establishment date this offseason: