Bundesliga champions Borussia Dortmund opened their title defense with an impressive 3-1 victory over Hamburg, but Mohamed Zidan wasn't there to play against his former club. Once again the Egypt forward remained as an unused sub for Juergen Klopp's side, who were inspired by a brace from Kevin Grosskreutz. Youngster Mario Goetze completed the rout as Robert Tesche scored the consolation goal for HSV. Dortmund have already played two games in the new season, cruising into the second round of the German Cup before losing the Super Cup to Schalke. Zidan, who played a cameo role in the champions' triumph last term, remained on the bench in both games. szólj hozzá: Dortmund 3-1 Hamburger - Goals