So I was re-watching the Lions versus Rams right now and Tirico said they were determining if it was a regular ball or a kicking ball in the game. I didn’t know that there was a difference to be honest. Here’s what I found with a quick Google search:
The footballs used by NFL kickers, sometimes called “K-balls,” are slightly modified to optimize performance . Baltimore Ravens kicker Justin Tucker showed 60 Minutes how his footballs are legally smoothed down by a brush where his foot will make impact
Anyway, I thought it was interesting and maybe not everyone knew it.
I want to say a long time ago they had big "K"s on the side, but I might be remembering that wrong.
I know they brought them in originally cause kickers were doctoring the regular footballs to make them easier to kick. However that did not make them easier to throw/catch/hold onto and other players started to complain lol. Now they get their own set of footballs to doctor however they want.
Yeah, this was brought up during Deflategate. I had no idea before that, but I remember it being discussed due to the controversy. Not sure what year it started.