"I feel like my arm is stronger," he said. "I'm regaining strength. I just don't know when I'm going to pitch."
Carpenter continues to work through an exercise program designed to strengthen his right shoulder, which has been compromised by a nerve irritation issue. The Cardinals' medical staff is waiting until Carpenter's strength reaches pre-injury levels before they consider letting him pick up a baseball again.
Carpenter, who turned 37 on Friday, joked that he actually "feels younger" than a pitcher who has now reached his late 30s. He then quickly added: "I just wish I could be pitching."