Mets activated C Travis d'Arnaud from the 7-day disabled list. D'Arnaud suffered a concussion earlier this month when he was hit in the head by a backswing from the Yankees' Alfonso Soriano, but he's now symptom-free and made it through a couple of rehab games without incident. The 25-year-old was batting .196/.274/.314 with three homers and eight RBI in 31 games before the injury.