<text>  Manuel Neuer made a horrendous error as Bayern Munich were stunned by a 2-0 defeat at home Borussia Monchengladbach in the Bundesliga on Sunday. Raffael scored both goals for Monchengladbach but his first, in the 30th minute, was fortuitous. His strike from the edge of the area was straight at Neuer but the usually efficient goalkeeper had sidestepped too far to his right and fumbled the ball over the line, unable to get his body behind the ball. Manuel Neuer centre spills a shot from Raffael as Bayen Munich lost to Borussia Monchengladbach . Neuer was visibly upset by his uncharacteristic error for Monchengladbachs opener . Raffaels second shot squirmed under Neuers body as Monchengladbach secured an important win . And Neuer could have done better with Raffaels second on 77, with the attackers low shot going in under the dive of the Germany international. The result meant Monchengladbach handed Pep Guardiolas side only their second league defeat of the season. The win keeps Gladbach firmly in third place on 47 points with Bayern 10 points clear at the top after second-placed Wolfsburgs 1-1 draw at Mainz 05. With more than 80 percent possession in the opening 20 minutes, it was clear from the start that Bayern wanted an early goal with Arjen Robben and Robert Lewandowski coming close. But Dutch forward Robbens comeback from injury was cut short when he had to come off in the 24th and the visitors then scored with their first shot on goal. Monchengladbachs players celebrate their win after the final whistle with supporters . Munich midfielder Bastian Schweinsteiger right reacts as Munich are beaten at home . Robben centre had to go off injured in the 24th minute on a miserable day for Munich . Neuer failed to hold on to Raffaels shot, with the ball rolling through his hands and over the line. Gladbach grew bolder in the second half and Neuer had to pull off a fine save to deny forward Andre Hahn in the 70th. The Germany keeper was, however, again beaten when Raffael picked up a Christoph Kramer pass after a superb run and slotted home for a surprise victory over the champions. 