Baltimore Ravens head coach John Harbaugh expressed disbelief Friday over how the Miami Dolphins managed Tua Tagovailoa's injuries over the past two games.

"I couldn't believe what I saw last night," Harbaugh said. "I couldn't believe what I saw last Sunday. It was just something that was astonishing to see. I've been coaching for 40 years now, college in the NFL ... and I've never seen anything like it before. I couldn't believe what I was seeing. I really appreciate our doctors. I appreciate our owner (Steve Bisciotti)."

Tagovailoa was stretched off the field during Thursday's loss to the Cincinnati Bengals after a scary hit in the second quarter. He was taken to the hospital and placed in concussion protocol before flying back to Miami with the team.

The incident came just four days after concerns that Tagovailoa suffered a head injury in a win over the Buffalo Bills in Week 3. The 24-year-old appeared to hit his head on the turf following a hit in the second quarter and stumbled when he got back to his feet.

However, Tagovailoa was cleared after a concussion check and returned following halftime to lead Miami to victory. Dolphins head coach Mike McDaniel said Tagovailoa was dealing with a back injury that caused him to stumble.

Harbaugh faced a similar situation in 2020 when Lamar Jackson was diagnosed with a concussion after hitting his head on the ground during a playoff game against the Buffalo Bills. The Ravens trailed 17-3 at the time of Jackson's injury and went on to lose the game.