Ricky Romero struggled during the 2012 season and it turns out he was pitching hurt.

He had arthroscopic surgery two weeks ago to "clean up" scar tissue that had built up in his left elbow.

Romero admitted he pitched through an unusual soreness on the outside of his elbow through most of the season.

"Did it have any impact? I will never know, but I'm not going to make any excuses about the bad year," he said. "… I stunk and that's it."