Related Clues:
- Softball officials, briefly
- Time callers
- Ballpark figures?
- Hall-of-famers Bill Klem and Nestor Chylak, e.g.
- Foul callers, briefly
- NBA personnel
- World Series workers
- They make judgment calls
- Umps' counterparts
- 'Steee-rike!' callers
- Park officials?
- Boxing officials
- Ice arbiters
- Masked men at home
- They cover all the bases