Gardner played in only nine games before being placed on the disabled in April. He has twice tried to come back on minor-league rehab assignments only to be shut down both times.
After his latest setback, the Yankees sent Gardner to see specialists Dr. James Andrews and Dr. Timothy Kremchek. On Thursday, Dr. Kremchek administered platelet-rich plasma and cortisone shots. The doctors have diagnosed Gardner with an elbow muscle strain, a bone bruise and joint inflammation, the team announced.
"I don't want to overexpose the old guys," Yankees general manager Brian Cashman said recently.
Cashman, unavailable for comment Thursday, has not ruled out making a trade if Gardner is to be out an extended period. Now, if Gardner will be ready for much of the season's second half, Cashman likely won't feel an urgency to make a deal.
information from The Associated Press was used in this report.