Sad news in the NFL ... replay official Carl Madsen died on Sunday shortly after working the Kansas City Chiefs vs. Tennessee Titans game in Tennessee.
He was 71 years old.
The NFL announced the tragic passing on Monday -- with league reporter Tom Pelissero saying Madsen died "while en route home" from the Week 7 matchup at Nissan Stadium in Nashville.
No other information surrounding his death has been given.
Madsen -- a veteran of the U.