If you haven't seen the anime or read the manga then you probably do not understand this wallpaper. Either way it is based off of Agon Kongo from Eyeshield 21. He right now is probably one of my favorite characters.

He is evil and cunning lol and yet he has God like reflexes which is strange but either way he is wicked. The image is from the manga so no worries there. Please enjoy it. :D I totally recommend reading Eyeshield 21 if you haven't it is so worth it!