New York Yankees manager Aaron Boone admitted Thursday that shortstop Anthony Volpe has played through a partial labrum tear in his left shoulder since May, if not longer.

The team had not previously revealed the lingering injury, which dates back to a play in the field in early May when he heard a "pop" in his shoulder. At the time, Boone told reporters that Volpe's X-rays and MRI turned back "good news."

But after a New York Post report earlier Thursday that said Volpe received a cortisone shot in the left shoulder, Boone said Volpe reaggravated the shoulder injury on a dive Sunday. The 24-year-old isn't expected to need a stint on the injured list.

"Obviously he had the incident in May where he dove and hurt his shoulder a little bit but felt it," Boone said Thursday. "At that time,

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