Instead, he said, his losing outing Thursday night, when he allowed four runs in one-third of an inning, was the result of irregular usage and "the need for more repetitions to get locked in."
"I know it will work itself out. I can't focus on when I pitch or don't pitch," said Wilson, who has been eased back into action, without appearances in back-to-back games, since he was activated April 15.
"I need to get to the point where everything is in sync. I know what I'm capable of doing when everything's in sync. I just need to get there."
When Wilson was disabled, it was as much to rebuild arm strength after rushing through a short Spring Training than an injury. His time on the DL included a brief Minor League rehab assignment.
"My arm feels pretty strong," he said.
Wilson has pitched four times since being activated, being scored upon in two of them. He has a 15.75 ERA, compared to a career ERA of 3.10 coming into the season.
Mattingly said he would probably use other pitchers for the eighth inning while Wilson works back into form. Chris Perez and Chris Withrow are the obvious candidates.
Ken Gurnick is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.