[USA MEN] German-bred Fabian Johnson won't be making his U.S. national team debut against Costa Rica or Belgium. While the process for Johnson to get approval from FIFA to change associations has begun, there is no set timetable for how long it takes to complete, according to U.S. Soccer.

U.S. Soccer reported on its men's national team blog that the 23-year-old Johnson, who currently plays for Hoffenheim in the German Bundesliga, will work out at the U.S. camp at the Home Depot Center but FIFA rules require he apply for a change of association and receive approval before he can represent the United States in a match.

Johnson helped Germany win the 2009 U-21 European Championship but is eligible to switch to the USA because he was also a U.S. citizen when he first played for Germany. (He was born in Munich to an American serviceman and a German mother.)

U.S. head coach Jurgen Klinsmann knew of the requirement but chose to bring Johnson into camp to give him a taste of the experience of being with the U.S. national team.