Tyler Chatwood (elbow) felt tightness in his right forearm following a live batting practice session Tuesday. Well, that's not a good sign. Chatwood has been on the shelf since late April with a flexor strain and inflammation in his right elbow, and it doesn't sound like he's fully healed yet. It's not clear if he'll undergo further testing, but at the very least the Rockies will slow Chatwood down a bit.