Brown also ran Edelman down another time, I believe on 3rd down. Edelman came across the formation and took a handoff or swing pass, cant remember which. Classic Pats/Edelman play where he gets the ball going full speed towards the corner and turns upfield with blockers in place.
This time, he tried to push Zac off of him to turn the corner, but Brown clobbered him and shoved him out of bounds from behind. Most LBs arent fast enough to run that play down from behind.