"You know what? I'm not really sure," Matusz said. "Obviously getting hurt in spring training and getting set back wasn't fun. But [vice president of baseball operations] Brady [Anderson] and I, we were rehabbing, working together. I had some good outings in Frederick and I was able to build some confidence and I made that transition back to the team. I felt the ball was coming out good at times. Just a couple things, a couple bad pitches here and there, a couple things didn't go my way and I just never really found that groove.