Related Clues:
- Ones usually found at home
- Strike zone-watching refs
- Officials calling strikes
- Home plate officials, informally
- Rules on fouls
- Crew of four on a baseball diamond
- Workers who make lots of calls
- Some work at home
- Cricket officials, for short
- They watch people steal
- Softball refs
- Officials at Phillies games, briefly
- Baseball crew
- Diamond crew
- Four of diamonds, for short?