By Rafael Soto
Mexico City. - The best Mexican boxer is the sport, and considered by many as one of the world's best pound for pound bxoers, Juan Manuel Marquez, held an open workout on Tuesday, as he continued to work hard for his upcoming commitment on Saturday night when he returns to Mexico City, where he hasn't fought for 18 years. Marquez (53-6-1, 39 KOs) will face Ukrainian Sergey Fedchenko (30-1-0, 13 KOs) for the interim-junior welterweight world championships of the World Boxing Organization (WBO). TV Azteca and HBO/Top Rank pay-per-view will televise.