Related Clues:
- Masked men in parks
- Works at the ballpark, maybe
- They can call you out
- Plate sweepers
- Play reviewers
- Some of them work at home
- World Series field sextet
- Ones watching their plates?
- World Series game sextet
- Baseball judges, for short
- Callers of balls
- Diamond officials, for short
- Infield quartet
- They decide what's fair
- They might tell you to take a walk