It was a big setback for Wagner, and one that could end his season. Instead of forearm stiffness, he has an elbow issue, and is headed for more tests on Tuesday. It's a little odd that none of this occurred until his simulated game, but one front-office source I spoke with said that Wagner probably didn't really let the ball go until the simulated game. Forearm problems are sometimes just referred pain from the elbow, and this certainly has some signs of having been that, though the Mets do have images that show a strain on the underside of his arm. I'm still not convinced that's the only problem, especially since Wagner actually expressed relief that it wasn't bone chips. (How would he know how they felt?) If there's any positive sign, it's that Wagner didn't have a sudden loss of control. We'll have to wait and see what the verdict is on Tuesday, but Mets fans have to be concerned that any extension of Wagner's time off will expose a weak bullpen.