Only took 1.1 seconds to knock him out.
This chick is knocked out cold when they collide with exercise balls.
She got knocked out by the bull pretty quick and was still strapped in. That's scary!
He thought those tracks were abandoned.
That kid just got checked into next week.
Some idiot attempts the deadly knockout game on an innocent girl walking in the mall. What happens next is instant Karma!!!
More drunk people knocking each other out by having a slap contest. Rule of thumb, don't play with the guy that is twice your size.
Pitcher Alex Cobb took a line drive straight to the head. He was taken by ambulance to the hospital.
He almost landed the jump with his bmx bike but came up short and knocked himself out cold.