ringman

noun6

1. •
   A male entertainer who works in the ring of a circus.
2. •
   A man within the betting ring of a racecourse; a bookmaker who works in the ring.
3. •
   A male boxer or prizefighter.
4. •
   A man who works in a ring where animals are exhibited.
5. •
   An auctioneer's assistant who spots bids and communicates information back to the auctioneer.
6. •
   (no longer used) The ring finger.

   • And when a man shooteth, the might of his shoote lyeth on the foremost finger, and on the ringman — 1545