[grantsrc]

I think the first block by the slot receiver is an IBW. Watch the way the defender falls. If it was truly a side block, he wouldn't land on his face/stomach like that. I watched it twice slow and thought it was clean but in full speed it is clearer. Hard to believe because of his angle that he got the back.

My question is though, I never saw the H throw a flag on that block and using enforcement, that wouldn't be foul he called. It would appear that it is the late block that causes one or two to fall towards the top of the screen. The block/contact had nothing to do with the play and isn't overly flagrant. I think a talk-to would be in order for that. And FWIW, the contact here looks to be from the side.