Sixers’ K.J. McDaniels is known for his highlights and rather entertaining way of playing ball. Well, the 21-year old rookie, freak athlete has struck again, this time LITERALLY. The crazy block over Raptors’ guard, Greivis Vasquez, that resembled a hardcore volleyball spike, turned out to be more destructive than everyone thought. After the ball went flying into the stands, it hit a female fan who suffered a concussion as result! Yikes, hit the jump to check out the video…