"I'm falling off on my changeup, but that's something we work on all the time," Duffy said. "It's not some revolutionary mechanical change we have to make. It's just physical.
"I'm OK [mentally]. I just don't know what I else I can say to own up to it. It's a slump. I'm not pitching up to my standards consistently."
As expected, Duffy has plenty of support inside the clubhouse.
"Moose [Mike Moustakas] keeps telling me, 'Dude, you're not even pitching that bad. Just hang tough,'" Duffy said. "I appreciate the support from him and the other teammates. I just want to do better. I expect to do better. Obviously, it hurts big time to go through this."
Duffy also is trying everything he can to not sound like a broken record.
"I know I'm going to be better," Duffy said. "I know it's the, 'Don't talk about it, just do it' thing for some people. But should I just shut up about it?
"This much I know. If this is my bad, my good is going to be pretty good."