Boxing
Top-notch competition. Recent medalists include Lennox Lewis, David Reid, Riddick Bowe, David Tua and Roy Jones, Jr. Cuba's Félix Savón is competing for his third consecutive gold medal in the heavyweight division.

If only that Evander-Iron Mike bout had been in the Olympics. The headgear is mandatory, as are mouthpieces and light boots or shoes. Plus, all competitors must fall in the 17 to 34 demographic. Oh, and no beards allowed.

In order to score, boxers must lead with the white. Points are awarded for a landed punch only if the white part of the glove makes the contact. All Olympic boxing gloves are 10 ounces, and the boxers can't bring their own -- the gloves are supplied for them.

Muscle alone won't win the match. For a punch to count, at least three of the five ringside judges must press a button if they think the punch landed with force. The computer electronic scoring system adds it all up and -- barring a knockout, etc. -- spits out a winner.

Some Olympic boxing rules might seem unfamiliar -- such as the four two-minute round format -- but low blows are still a no-no, as are hitting with an open glove, hitting the opponent in the back of the head and mouthing off to the ref, among others.