The NFL world was hit with some wild news on Monday: In the face of the Indianapolis Colts needing help at QB -- Daniel Jones is done for the year, Anthony Richardson is still out and Riley Leonard has a knee injury -- the franchise will work out 44-year-old retiree Philip Rivers on Tuesday.

Although he won't be the oldest QB in NFL history if he signs, there is a fun fact: He recently became a grandfather. Remember, he has 10 children, and one of them gave birth recently.

But he wouldn't be the first grandpa in NFL history! That would be... Brett Favre! Back in 2010, while he was with the Minnesota Vikings, his 21-year-old daughter Brittany gave birth to Parker Brett.

There you have it.

Wild!

This article originally appeared on For The Win: Grandpa Philip Rivers isn't the first grandfather in NFL history

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

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