Those Chinese docs are amazing with their acupuncture. They'll have that arm looking like a porcupine for a day. He should be up and whackin just in time for the womens beach volleyball finals. Seriously though, the last time I saw limbs at those angles was when I lobbed a grenade into a North Korean foxhole.
http://www.liveleak.com/view?i=33a_1218642189&p=1
http://www.liveleak.com/view?i=33a_1218642189&p=1