The United States isn’t the only team faced with injuries before the crucial Game 9 of World Cup qualifying. Jamaica, which plays the Americans Oct. 7 in Foxboro, Mass., will be without two English-based stars: midfielder Darryl Powell and defender Frank Sinclair. The United States is hoping for some help from Costa Rica, which faces Mexico Sunday in San Jose, but the Ticos will be without star Paulo Wanchope for some two months after he underwent surgery Tuesday for a knee injury suffered last week while playing for Manchester City in EnglandÆs First Division. Honduras, which faces Trinidad & Tobago Sunday, got bad news when speedster Milton “Tyson” Nunez suffered a right knee sprain playing with Uruguayan club Nacional.