Carl Crawford knows how this story ends. Given the condition of his left elbow, especially after a platelet-rich plasma injection in late April didn't spur significant improvement, the left fielder conceded he has been told by doctors that, eventually, he likely will need Tommy John surgery to repair a damaged ulnar collateral ligament. "Probably at some point it's going to blow out on me," Crawford said yesterday. "It's one of those deals where it is what it is."