Germany easily beat the United States 3-0 at the Under-20 World Cup Saturday, while Ghana and Cameroon also won their opening games. Semih Aydilek put the Germans ahead with a penalty kick in the 30th. Florian Jungwirth added another two minutes later, firing the ball past American keeper Brian Perk from the edge of the area. In the 72nd, Schaeffler sealed the Group C game by completing the scoring after taking a cross from substitute Cihan Kaptan. Cameroon's Andre Akono Effa and Germain Tiko scored for a 2-0 win in Group C over South Korea. In Group D, Ghana came from a goal down to beat Uzbekistan 2-1. Sherzodbek Karimov gave Uzbekistan the lead in the 47th, before Ransford Osei leveled on the hour. In another match, Uruguay beat England 1-0, with substitute Tabare Viudez scoring from a superb scissors kick.