Don't have time to go through the whole game, but this is the one I was referring to. 2nd quarter, KC facing 3rd and 8, down 14-7. Pass over the middle to JuJu is incomplete. He screams for a flag. If you have the video you can see how blatant a hold it was. But here's the screenshot. (I don't know how to paste the clip).
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Even Olsen was commenting how the refs missed that one.
Also note that it was Bradberry - the same one who committed the penalty at the end. If he was getting away with this during the game, obviously it would make sense that he would play it the same way at the end, having been given no reason to think that the refs would call it. This one above was WAY worse than the one at the end, by the way.
Then there was this one at the end of the first half, on the deep ball to Smith down the right sideline. He hauled it in, but that's when the refs delayed the snap for some reason (I don't recall why) and KC ended up challenging the catch and it was overturned.
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Bunch of comments in the game thread, and the video is pretty conclusive, but yeah, Sneed totally interfered with Smith on this play - got there and grabbed Smith's arms before the ball got there. That Smith caught it was pretty amazing actually, though it got overturned.
Anyway, those are two examples of physical play by DBs that didn't get called. Both were significantly worse than what happened at the end when they DID throw a flag.