PHOENIX -- D-backs catcher Miguel Montero approached pitcher Brandon McCarthy in the trainer's room after Tuesday's game and apologized for the pitches he signaled early in Arizona's loss to the Pirates.
"I apologized to him, because I feel like I called a really bad game," Montero said. "I think he had really good stuff going, I just didn't make the right calls. He threw everything that I put down, so I felt bad because he really trusted me, and I feel like I let him down."
McCarthy allowed six runs (four earned) over 6 2/3 innings, including five in the fourth inning.
After that, Montero started calling for more offspeed pitches, and McCarthy only allowed one hit over the next 2 2/3 innings.
"I started mixing up, changing speeds more, because we were going hard, hard, hard," Montero said. "I think I'm going to grab what we did there and use it from now on, because it was pretty good."
Montero has said that he considers his work behind the plate even more important than his work in the batter's box, and when a pitcher struggles, Montero will blame himself.
The start was McCarthy's second since signing as a free agent in the offseason and Montero is still learning how to call pitches for him.
"I just didn't have the right fingers yesterday," Montero said. "It's just a bad feeling. I take it personal."
Steve Gilbert is a reporter for MLB.com. Read his blog, Inside the D-backs, and follow him on Twitter @SteveGilbertMLB. This story was not subject to the approval of Major League Baseball or its clubs.