Sam was parallel to the floor when he hit the wall. Pain exploded in his chest and he blacked out for a second. He came to on the floor. His ears were ringing and he felt like he was going to vomit. His left leg was twisted underneath him. He felt no pain from it, but by the angle, he knew it had to be broken. It hurt to breathe, causing sharp stabbing pains in his chest. Ribs broken too, he thought. No more running now.