Nationals manager Matt Williams said during a radio appearance Monday night that Ryan Zimmerman has an "arthritic shoulder." An MRI exam over the weekend revealed no structural damage, but Zimmerman's right shoulder has been an issue for a couple of seasons now and there's no real end in sight. The Nationals could ease the burden somewhat by cutting down on pre-game throwing and having him play the occasional game at first base, but an eventual move across the diamond appears inevitable. Adam LaRoche's contract expires after this season, so we're thinking it will happen next season.