Related Clues:
- Works at home?
- Balls-and-strikes callers
- Play watchers?
- ''No catch'' signalers
- Tennis arbiters
- Officials who cry 'Yer out!'
- They're usually assigned to bases
- Diamond group
- Tennis judges
- You might be safe with them
- Home workers
- Ref relatives
- There are six in every MLB playoff game
- Ones near bases
- Pitch evaluators