B/R W Sports on Instagram: "The official made sure she didn’t go down hard  Kelsey Mitchell experienced rhabdomyolysis, a rare muscle condition usually caused from overexertion. “My muscles stopped producing positive blood to my bloodstream, my body locked up from a physical standpoint” Mitchell said in a social media statement. She was treated at local hospital and is expected to make a full recovery. #wnba #womensbasketball #basketball"