This pic is for maychorian (or her little sister Talitha *waves hi*) who is collecting a list of hurt Sam Supernatural fic over at http://maychorian.livejournal.com/106393.html
She said she didn't have an icon for whumped Sam.
Man, this was harder than I thought. I looked through many screencaps (some great ones are at http://stripedwall.com/gallery.php?dir=television
) of Sam during scenes that I remember really feeling the "oh, don't hurt Sammy any more you cruel writers" vibe. However, when you isolate a hurt Sam face out of context, often it looks like some other emotion or thought. I passed over dozens of variations of hurt Dean/sad Dean/beat up but defiant Dean before I found this pic. I guess Jared P's voice and body language are needed to portray the full range of these particular emotions. Jensen A can show it just in the facial expressions.