Lightweight titleholder Humberto Soto, claiming he is owed more than $1 million by Top Rank and that his promotional agreement with the company is expired, has declared himself a free agent, attorney and co-manager Michael Miller told ESPN.com. Top Rank announced in February that Soto (55-7-2, 33 KOs), of Mexico, would face Urbano Antillon (28-2, 20 KOs) in a rematch of the 2010 ESPN.com fight of the year on the Manny Pacquiao-Shane Mosley Showtime PPV undercard on May 7 at the MGM Grand in Las Vegas. Miller, however, said Soto never signed a contract for the fight and would not participate in the bout. Read more: http://sports.espn.go.com/sports/boxing/news/story?id=6354065
