Mexico's Cuauhtemoc Blanco became the latest player to sign with the MLS under the league's new salary cap exception policy.
The Chicago Fire on Tuesday signed Blanco, a creative striker with Club America of the Mexican First Division.
Terms were not disclosed. Blanco is expected to join the team 1 July, almost two months after the start of the season.
Last November, MLS instituted the designated player rule, which allow clubs to exceed the 1.9-million-dollar salary cap to sign certain players.
The cap clearly has prevented some of the top players from Europe being lured to the United States.
The Los Angeles Galaxy was the first team to exercise the designated player rule when it signed David Beckham to a five-year deal worth an estimated 250 million dollars in salary and endorsements in January.
A fixture on the Mexican national team, Blanco has scored 25 goals in 95 games, and also represented Mexico at two FIFA World Cups (1998, 2002), scoring in each one.