Werder Bremen won 1-0 at Cologne on Friday to move further away from the Bundesliga danger zone and leave the hosts in deep trouble. Justin Njinmah came on in the 66th minute and tapped the winner four minutes later after Cologne goalkeeper Marvin Schwäbe missed a cross from Mitchell Weiser in the 100th meeting between the two sides. Cologne fought to avoid a first defeat in four matches, and Bremen captain Marco Friedl needed to clear on the goal-line to prevent Weiser from heading into his own net off a corner kick. It was Bremen’s third straight 1-0 victory on the road, the others coming at…