Boxing's rare double Rau'Shee Warren will be the first U.S. boxer to fight in two Olympics since 1976.

Olympic boxing consists of 11 weight classes. After the 2000 Games, boxing cut one weight class to allow for the addition of women's wrestling in 2004.

The U.S. has a couple medal contenders in boxing, but they're not the only ones with a fighting chance. Here's 10 to keep an eye on.

A relative novice in the sport, Deontay Wilder is pounding his way through the boxing ranks, inspired by the strength of his daughter.

After winning bronze at the 2004 Olympics, Zou Shiming won world titles at light flyweight (48kg/106 lbs) in 2005 and 2007.

The yougest athlete among the 2004 U.S. Olympic delegation, Rau'Shee Warren is the first U.S. boxer to fight in two Olympics since 1976.

Nine American boxers will compete in Beijing, including two reigning world champions. The U.S. failed to qualify in the two other weight classes.

All of Cuba's medalists from 2004 have moved on, so is the boxing-rich nation rebuilding or reloading? Odds are on the latter.