Andrew Whitworth knew he was retiring the moment the confetti fell on Super Bowl LVI -- 'cause the Rams star told his kids he was hanging up his helmet while celebrating the championship on the SoFi Stadium field.
The heartfelt moment was captured by NFL Films on Feb. 13 ... but wasn't released until the 40-year-old left tackle announced his retirement on Tuesday.
In the clip, you can see Whitworth sitting on the turf with his four kids, surrounded by confetti.
"Hey, listen to me," Whitworth says, "That is daddy's last football game.