Didn't watch the game, so can't tell you.

Well you're in luck, NFL official YT channel just uploaded the whole game: www.youtube.com/watch?v=fCdt... . If you want to watch it.

Yeah. The guy in white and blue is the offensive lineman(position Right Tackle) whose job is to protect the quaterback(QB) and defender spun around him and went on to hit the QB. Since the QB got the ball out first, its a hit. If he had the ball in his hand and went down with it that would be a sack