Berlin: Bundesliga champions Bayern Munich were soundly beaten 2-0 at Borussia Dortmund as their goalscoring problems continued on Sunday.
Paraguay forward Lucas Barrios and Turkey midfielder Nuri Sahin scored in an eight-minute spell early in the second half to leave Bayern a modest 12th in the table with eight points from seven games.
Bayern have the worst attacking record in the league with only five goals scored.
Borussia`s win was their sixth and kept them second, three points behind leaders Mainz 05 who have a 100 percent record.
In Sunday`s other games, VfB Stuttgart remained rooted to the bottom of the table after losing 2-1 at home to Eintracht Frankfurt, their sixth defeat in seven league outings, while Werder Bremen drew 2-2 at Bayer Leverkusen.