Related Clues:
- KO verifier
- Slo-mo reviewer
- Volleyball arbiter
- Sports arbiter, for short
- Third person in a ring
- Whistler between baskets
- KO or TD caller
- A person in Ring gets to pass on a number of drugs
- Ump.'s counterpart
- Ring official (Abbr.)
- Boxing decision maker
- He makes sure the rules of the game are followed
- Boxing or wrestling official
- NFL official (abbr.)
- ''Foul!'' caller