The German-American central defender was forced out of Hertha Berlin's match Sunday, putting his availability for next month's World Cup qualifiers in doubt.
Brooks suffered the injury to his right arm in the early stages of Hertha Berlin's 1-1 draw with SC Freiburg on Sunday, and he was forced to depart in the 20th minute. According to an announcement on the club's website, the 20-year-old Brooks, who maintains Germany and USA international eligibility, will miss up to three weeks, which puts his availability for Jurgen Klinsmann next month into question.
Brooks, who could be cap-tied and thus only eligible for the USA for the future with an appearance in either of the two October World Cup qualifying matches, would be slated to return right around the Oct. 11 and 15 matches against Jamaica and Panama, respectively, should his injury timetable hold. He was on the U.S. roster for the Sept. 6 qualifying match against Costa Rica but did not play before being released to Hertha Berlin prior to the Sept. 10 victory over Mexico.
Brooks' injury is also a blow to his club, as he has played in all of Hertha Berlin's six Bundesliga matches this season. He has started five of those games, and he scored the eventual game-winning goal on the opening day of the campaign in a 6-1 rout of Eintracht Frankfurt.