"Chuck Hughes was a wide receiver in 1971 when he suffered a fatal heart attack at the end of the team’s game

"Chuck Hughes was a wide receiver for the Detroit Lions in October 1971 when he clutched his chest and fell to the ground, suffering a fatal heart attack at the end of the team's game .."

https://www.msn.com/en-us/sports/nfl/widow-of-only-nfl-player-to-die-on-the-field-responds-to-damar-hamlin-cardiac-arrest-you-can-t-blame-football/ar-AA160r24