BERLIN (AP) — Bayern Munich overcame a difficult start to beat Nuremberg 2-0 in the Bavarian derby and restore its 13-point advantage in the Bundesliga on Saturday, while Borussia Dortmund routed Werder Bremen 5-1.
Nuremberg struck the crossbar through Hiroshi Kiyotake in the fourth minute and forced several saves from Manuel Neuer before Mario Mandzukic scored with the visitors' first real chance in the 18th.
Mario Goetze sent David Alaba through on the left, and the Bayern defender crossed for Mandzukic to get ahead of his marker and convert.
The Croatian striker then crossed for Philipp Lahm to effectively seal the result in the 49th, ensuring Bayern stretched its league record unbeaten run to 45 games.
"It's a quality that Bayern scores one goal from one chance," Nuremberg coach Gertjan Verbeek said. "The momentum was then gone. The first half cost us a lot of energy and the belief wasn't quite as strong. After the quick second goal it was practically impossible."
Nuremberg was dealt two early blows when striker Daniel Ginczek and defender Timmy Chandler went off with injuries. The club said Ginczek was ruled out for the rest of the season after tearing the cruciate ligament in his right knee, while Chandler tore a meniscus in his left knee, keeping the United States defender out for eight to 10 weeks.
The home side was lucky not to go further behind in the 32nd. Arjen Robben struck the post from a free kick, Thomas Mueller struck the crossbar from the rebound and Mandzukic's follow up was blocked. Robben also struck the post in the second half.
"I quickly saw why Bayern has only won once in Nuremberg in the last six years," Bayern coach Pep Guardiola said. "Nuremberg played with a lot of aggression and intensity. They attacked very quickly and had two or three clear chances. It was easier for us after the second goal."
Two goals each from Henrikh Mkhitaryan and Robert Lewandowski, and another from Manuel Friedrich, ensured Dortmund stayed 17 points behind Bayern in third. Levent Aycicek scored Bremen's 89th-minute consolation on his Bundesliga debut.
Bremen coach Robin Dutt is coming under increasing pressure after the club's worst start to a Bundesliga season since 1974-75. Dutt took over last summer from Thomas Schaaf, who had been in charge for 14 years.