VIDEO: Yorgan De Castro Knocks Justin Tafa Completely Out Cold With Vicious Right Hand at UFC 243

Just a few minutes into the main card, we probably have the most brutal knockout of the night. In the heavyweight bout between Yorgan De Castro and Justin Tafa, one of these big men hit the mat early and will likely wake up tomorrow morning not knowing what happened. De Castro crushed Tafa with a right hand that couldn't have been more square to the face, and Tafa dropped like a ton of bricks.

That's some scary power.

Talk about a start to the main card.