I was away for the weekend and just watched my Tivo of the Atlanta game. In watching the backup defense(after the first series) I noticed Sullivan having a hard time anchoring against the run. After watching more closely, I saw that every time the Falcons ran inside, they would chop-block the NT, rather obviously, without any penalty flags. With the center engaged on the NT, the backside guard would attempt to cut him thigh or knee high. I counted more than 10 times that this occurred, where the center was still engaged, and no penalties were called. To his credit, Sullivan, and Klecko at the end, kept his feet, but was thrown off balance and forced to cede ground. I'm posting this because I want to know if this stood out to anyone else. I don't considere myself one of those fans that screams for penalties on every play, so I need to know if I was over-reacting to what I thought I saw.