An analysis of Evander Holyfield's rematch with Mike Tyson.

Highlighted fights from 2016 include Thurman vs. Porter and Santa Cruz vs. Frampton.

The career of Christy Martin; boxing's biggest upset knockouts.

Recalling boxing's biggest upset knockouts; a look at the career of Christy Martin, one of the greatest female fighters in boxing history.

A look back at some of boxing's most memorable knockouts, including ones that saved a fight or changed the course of the sport's history.