"I thought the hit was just a great example of a young guy who's really paying attention to technique, paying attention to the rules, trying to do things the right way," Harbaugh said. "The game can be played in a very physical way still and still adhere to principles of player safety. He did a great job of that."
Titans coach Ken Whisenhunt disagreed, saying that Brooks had made contact with the helmet.
Former NFL vice president of officiating Miker Pereira, a rules analyst for Fox Sports, immediately defended the hit on Twitter.
"This is not an illegal hit on a defenseless receiver," Pereira wrote. "It's shoulder to shoulder, the head is in front. It does lead to a concussion, maybe when he hits the ground, maybe when his head snaps, but this is a legal hit."