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% 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.
