Baltimore Ravens tight end Mark Andrews suffered what is likely a season-ending ankle injury on Thursday night against the Cincinnati Bengals.

"Mark Andrews has a very serious ankle injury," Harbaugh said after the team's 34-20 victory. "I think it's a form of a high ankle [injury] but more than just a sprain."

Andrews' injury sparked some controversy. On the opening drive, he was thrown to the ground with a "hip drop" tackle by Bengals linebacker Logan Wilson.

There was talk this past offseason that the NFL could outlaw that tackling technique in which the defender grabs the ball carrier from behind and pulls him down while dropping his own body to the ground.

"It was definitely a hip-drop tackle, and it is being discussed," Harbaugh said. "It's a tough tackle. Was it even necessary in that situation?"

Asked about Wilson's tackles that have resulted in players getting injured, Bengals coach Zac Taylor said, "I don't know anything about that."