It was a brilliant day for the Miami Dolphins as they beat Super Bowl favourites Buffalo Bills in week three, but it was a scary afternoon for Tua Tagovialoa.
The Dolphins quarterback was slammed by Bills linebacker Matt Milano and knocked to the floor, and was clearly in some discomfort as he struggled to get to his feet. But as he did, he stumbled and fell down once more, as he was experiencing major signs of a brutal concussion.
The game was tied at 14-14, although the Dolphins went on to win 21-19 as Tagovialoa thankfully returned. But American football analyst Bill Simmons though it looked as though he'd been 'knocked out by Mike Tyson ' as he was all over the place for a few moments.
