Green made his first-team debut for Bayern in a Champions League match in November but is yet to feature in the Bundesliga. He plays regularly for Bayern's reserve side. Although Green most recently represented Germany on the youth level, he did play for the U.S. Under-18 side in a September 2012 friendly. 	The one-time switch is required because Green played for Germany this past fall in U-19 European Championship qualifying, an official competition. 	The player will join the USA for its friendly against Mexico on April 2 in Glendale, Ariz., although it remains to be seen if his switch will be approved in time for him to play. 	"He is a very special talent," Klinsmann said. "We wanted him to feel comfortable with our program and listen to his heart when making this decision. I personally want to thank Kalle Rummenigge and everyone at Bayern Munich for their support through this process. He is an exciting player with a tremendously bright future."