Wolfsburg trounced Turbine Potsdam 4-0 on Saturday to win the women’s German Cup an eighth straight year and a record-tying ninth time overall. The game was decided in the first half from two headers by Ewa Pajor and a shot from Jill Roord before Dominique Janssen wrapped up matters with a deflected free-kick after the break. It was the 40th win in a row in the competition for former two-time Champions League winners Wolfsburg who also won the Bundesliga title for now six domestic doubles. They are tied on nine Cup titles overall with FFC Frankfurt. Potsdam have three Cup wins from 2004-2006 b…