Miami Dolphins quarterback Tua Tagovailoa has released a statement following his head injury sustained Thursday night in a loss to the Cincinnati Bengals. In the second quarter of the game, Tagovailoa was tackled for a sack, hitting his head on the turf as he was going down. His arms immediately began to flex and his hands tightened as he dealt with the head injury. After being taken off the field on a stretcher and being moved to the University of Cincinnati Medical Center, Tagovailoa was cleared to leave the hospital and to fly back to South Florida with the team.…