Possible Clues:

• Mike Trout and Mickey Mantle, by pos
• Middle defensive players in baseball: Abbr
• Joe DiMaggio and Mickey Mantle, e.g. (abbr.)
• Kirby Puckett and Mickey Mantle, by pos
• Ty Cobb and Willie Mays, positionally: Abbr.
• Baseball positions: Abbr.
• Certain baseball positions: Abbr.