New Hamburg manager Mirko Slomka has doubled training at the side in a bid to help the German Bundesliga strugglers avoid relegation, while saying the club should be up in the top five rather than 17th.
Schalke returned from the winter break in style with a 3-0 win over Hamburg, which saw the German Bundesliga side move fifth, while Eintracht Braunschweig battled Werder Bremen to a goalless draw.
Hamburg beat ten-man Hanover 3-1 despite not having Rafael van der Vaart in the squad to move up to 11th in the Bundesliga table, while Mainz beat Werder Bremen 3-2.
Hamburg's Dutch captain Rafael van der Vaart will potentially miss the rest of 2013 with his club after suffering an ankle injury in Netherlands' goalless draw with Colombia.
Japan fought back from two goal down to secure a 2-2 draw against the Netherlands, with Yuya Osako and Keisuke Honda cancelling out early goals form Rafael van der Vaart and Arjen Robben.
Hamburg rescued a point in a 3-3 draw on Sunday after going down three times to Stuttgart, while Wolfsburg battled back against Augsburg to win 2-1.