THE BRONX — Bob Shepherd has been the voice of Yankee Stadium since Joe DiMaggio’s final season which was also Mickey Mantle’s first. Shepherd who is not that far off from 100 years old, has been unable work this season. One of the substitute announcers is Jim Hall, who has a similar voice to Shepherd. Hall will never be Bob Shepherd, but his voice is quite good and I think he would be an upgrade over most p.a. announcers.