"I think the injection really helped him," manager Buck Showalter said.
Pearce, who has been on the DL since Aug. 31, said he's ready to test his wrist with full force and won't hold anything back.
"Let it eat," he said. "I had an offseason to get ready. I'll do anything to help the team, so I'll go out there and I'll swing."
Jason Mastrodonato is a reporter for MLB.com. Follow him on Twitter @jmastrodonato. This story was not subject to the approval of Major League Baseball or its clubs.