 However, he did not receive any playing time in the match, and was not part of the 23-man squad at the 2006 FIFA World Cup either.Friedrich made his full debut on 16 August 2006, playing the entire second half of another friendly, the 3–0 with Sweden in Gelsenkirchen.He subsequently featured the full 90 minutes in the German team's opening two Euro 2008 qualifiers against the Republic of Ireland and San Marino, scoring his first international goal in the latter, the 12th in a 13–0 victory over the group underdogs.