Most gamblers are expecting the Floyd Mayweather Jr.-Manny Pacquiao fight on Saturday to go the full 12 rounds.
Once the bell rings, four men will play a crucial role in the bout.
Here's a quick look at the referee, and the three judges who will score the fight at ringside.
Referee Kenny Bayless
Bayless, 54, is one of the most celebrated referees in the country and has handled seven previous Pacquiao fights and five of Mayweather's. He began his career in 1993 and is heavily in demand; some years he's refereed nearly 70 fights.
He was in the ring for Mayweather's pro debut in Las Vegas, in October 1996, against Roberto Apodaca. Mayweather...