Related Clues:
- Fight arbiters
- Calls, as a game
- NFL 'zebras'
- Plate sweepers
- Play reviewers
- Some of them work at home
- Football field officials
- Lacrosse officials
- World Series field sextet
- Ones watching their plates?
- World Series game sextet
- Baseball judges, for short
- Two-legged zebras?
- Callers of balls
- Diamond officials, for short