Mexico's Tax Administration Service (SAT) "is set to investigate Liga MX clubs and players" for the alleged existence of "double contracts," according to Tom Marshall of ESPN.com. "Double contracts" are when a player or employee signs one contract to register with the Mexican Football Federation (FMF) as an official document "and then has another on the side directly with the club or separate entity." There have been "regular accusations of the existence of such contracts in Mexico, but the issue was blown open" when Guillermo Vazquez accused Veracruz of using the practice after his resignation as the club's manager. Veracruz Sporting VP Mario Trejo confirmed that such contracts do exist at the club and "went on to suggest" that it is not the only one in Mexico "that has them." The SAT said in a statement, "The information published by different outlets regarding double contracts submitted to the Mexican football federation is information that for the SAT will lead to a specific review of the topic in order to identify possible irregularities" (ESPN.com, 8/16).