Clip of the Morning: The Best Knockout of UFC 143 (Video)

As a kid, you are taught to always keep your hands up when fighting. You would think that when you're competing in mixed martial arts, the same rules would apply. But during last night's UFC 143, Dan Stittigen failed to properly defend himself and suffered a huge knockout after getting a right foot from Stephen Thompson to the dome. Lesson learned.    

[via YouTube]

Follow @Complex_Sports for more news and commentary.