Always look at the ball when you're about to head it...

-Went up for a header at the same time as another guy, and the sun gets in my eyes. I close them.

-Next thing I know I'm on my back.

-I hear a whistle and I run forward to get in front of the penalty kick.

-Glance backwards

-Game is stopped everyone is looking at me. Ref is running towards me.

-Confused, rub part of head that hurts.

-Hand has large amount of blood on it.

-Get taken off. I'm actually perfectly fine. Just small cut, bleeding more than usual.

-Still don't know what hit me.