Philip Rivers is back in the NFL, which is so wild given the fact that he last threw a pass for the Indianapolis Colts in... 2020.

But the father of 10 (and he's a grandfather now, did you know that?) knows Shane Steichen's system, so he might be the right fit even if he's very old by NFL standards.

Which brings us to all the facts that are being thrown around about Rivers' age on X (formerly Twitter) as he gets ready for his return. We collected a few of them for you to be in awe of. Check 'em out:

How old is Philip Rivers?

He is 44 years old and 1 day as of publishing this. His birthday was on Dec. 8.

Philip Rivers is older than a bunch of NFL coaches

Philip Rivers is older than his coach and offensive coordinator

Philip Rivers' oldest kid is younger than some of his Colts teammates

He's one of the 44-year-old QBs ever to suit up

This article originally appeared on For The Win: 4 quirky facts about Philip Rivers' age

Reporting by Charles Curtis, For The Win / For The Win

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