Related Clues:

• Foul callers, briefly
• World Series workers
• They make judgment calls
• 'Steee-rike!' callers
• Park officials?
• Masked men at home
• They cover all the bases
• Calls the game
• World Series sextet
• Diamond arbiters
• Calls a game
• Diamond figures
• Diamond judges
• Vest wearers
• Dispute settlers