Related Clues:
- Decide on close ones
- Replay reviewer, at times
- Basketball judge
- Court presence, briefly
- Enforce the rules
- Ump kin
- Shot caller
- The third man in the ring, briefly
- He'll let you know if you're out of bounds
- Ring judge
- Judo official
- Volleyball VIP
- Clock stopper, at times
- Fairness determiner
- Ring figure, for short