This is a photo of Joseph Michael "Joe" Morgan, who would later become the manager of the Boston Red Sox. I had originally posted it as Luther Quinn, but the correct identification was made by Merkle923. The photo came from eBay vender historicimages, who was selling it in 2013, and had identified it as Luther Quinn. Joe Morgan was a manager in the Pirates' system from 1966 through 1971 and in 1973.
https://www.baseball-reference.com/r...d=morgan001jos