DORTMUND, September 16 (Bundesliga) - Borussia Dortmund extended their unbeaten run to three games as Dede's late free-kick sealed a hard-fought 1-0 win over Hamburg.
Hamburg were looking on course to earn a point from their trip to the Signal Iduna Park as as they looked to bounce back from their midweek Champions League defeat by Arsenal.
However, the Brazilian defender popped up nine minutes from time to claim the three points.
Florian Kringe had the first chance for the home side after just two minutes as the midfielder fired narrowly wide from Paulo Cesar Tinga's cross, while at the other end Danijel Ljuboja's long range strike was easily saved by Dortmund goalkeeper Roman Weidenfeller.
Boubacar Sanogo fired wide for the visitors after being picked out by Raphael Wicky and Dortmund striker Alexander Frei sent his effort wide of the upright as neither side could find a breakthrough.
Ljuboja should handed the visitors the lead before the break but he failed to convert after being sent clear of the Dortmund backline.
Kringe looked to hand his side the lead in the opening stages of the first half but again fired wide before Hamburg custodian Sascha Kirschstein denied half-time substitute Ebi Smolarek.
Kirschstein was again on hand to rescue his as the Hamburg goalkeeper tipped Dede's dipping long range effort over the crossbar.
Hamburg striker Sanogo sent his effort narrowly over the bar at the other end before Dede handed Dortmund the win beating Kirschstein with a stunning dipping free-kick from distance as Bert van Marwijk's side moved up to fifth in the table, a point behind early leaders Nurnberg.