Colts earlier added the 44 year old grandfather Philip Rivers to their sunday roster vs Seattle Seahawks. He played for 17 seasons and retired in 2021
And today he was confirmed as the starter

https://www.nfl.com/news/colts-to-start-philip-rivers-vs-seahawks-just-days-after-qb-came-out-of-retirement

This is some hollywood movie style game, they are 7 odds to win and maybe we might see something today