Mexico, just like many Hispanic nations, has always appreciated boxing as one of its favorite pasttimes. If the United States has baseball and the rest of the world has football, to an extent we can also say that Mexico has boxing as a major sport, arguably second only to football when it comes to popularity.
In the past few several years alone, the Central American nation has already produced a number of world boxing champions, including Marco Antonio Barrera and Erik Morales. In the most recent past, the country's top boxers have been experiencing continued losses from its Filipino counterparts, though it can be said that the country still has a superb boxing tradition.
Furthermore, most boxing critics talk about a certain boxing rivalry between Puerto Rico and Mexico. The two territories, which have predominantly Hispanic populations, has seen some of the most exciting boxing matches in history. The two territories have also had two of the most colorful boxing histories in the world so seeing athletes from the two countries battle it out inside the ring is something that fans are always looking forward to. This Wikipedia entry about the Puerto Rico-Mexico boxing rivalry can give you more detailed descriptions about some of the matches between boxers from the two territories.
The results of these matches usually differ from time to time so it's pretty difficult to find out which one is actually gaining lead. The both of these territories just produce superb athletes.
Quite honestly, I am not a boxing fan myself. I just find it difficult to appreciate a sport that involves people hitting each other. I know that a similar style of competition is employed in the other martial arts, but the wounds and injuries received in a professional boxing match is too much for me. Nevertheless, this is all part of Mexican culture so you might as well know a lot about it during your stay. If you really don't want to become a boxing fan, then you can always stick with the national sport, which happens to be football.
Now we're talking.