Reports reveal that he had a medical emergency, but once paramedics arrived, he was pronounced dead.
After the sad news was announced, players, fans, media, etc. expressed their sadness, and shared memories of the legend.
In a tribute posted on Twitter, Jarrett Payton, the son of fellow Bears legend Walter Payton, shared some words:
Athletes of many sports and NFL media members also took to Twitter to share some words:
Rest In Peace, Legend.