D'Arnaud is dealing with an elbow issue, Adam Rubin of ESPNNewYork.com reports. While manager Terry Collins was mum as to the nature of d'Arnaud's injury, GM Sandy Alderson acknowledged that his elbow is the area of concern. D'Arnaud was to be examined by Mets doctors Friday, and until the results are disclosed, his availability for the team's final series will remain uncertain.