Danny Garcia, Sergio Martinez, and Amir Khan all won as expected on Saturday, but each of them was pushed by their underdog opponent in a series of entertaining fights.

It's a busy weekend for the sport of boxing, with Sergio Martinez returning to Argentina for the first time in 11 years, Zab Judah and Danny Garcia kicking up dust in Brooklyn, and Amir Khan in action in the UK.

A video preview of the battle between Julio Cesar Chavez Jr. and Sergio Martinez. The two men fight this Saturday night on HBO pay-per-view.

The story of the circumstances that led to Canelo Alvarez vs. Josesito Lopez and Julio Cesar Chavez Jr. vs. Sergio Martinez taking place on the same night on competing networks.

Miguel Cotto beat Ricardo Mayorga yesterday and Sergio Martinez also defeated Sergiy Dzinzurik in boxing news.