 Six days later, Fahrenhorst debuted in this game for the senior team and played the full 90 minutes.On 8 September 2004, Fahrenhorst made his second and final appearances for the senior national team when he played another 90 minutes in the 1-1 draw against Brazil in Berlin's Olympic Stadium.Both matches were international friendlies in the run-up to 2006 FIFA World Cup on home soil.