Borussia Dortmund let slip a two-goal lead before recovering to blast four goals in 16 minutes as they maintained their perfect start to the season with a thrilling 6-2 victory over Hamburg SV on Saturday.
New signing Pierre-Emerick Aubameyang and Robert Lewandowski netted twice each, Marco Reus capped a virtuouso performance with a goal and Henrikh Mkhitaryan completed the scoring as the Bundesliga leaders made it five wins out of five.
Dortmundgot off to a flying start when Aubameyang and Mkhitaryan put them 2-0 ahead after 22 minutes, only to see Hamburg level through Zhi-Gin Lam's curling shot and a Heiko Westermann header.
New signing Mkhitaryan then combined with Aubameyang before the Gabon forward scored with an angled shot in the 65th minute and Lewandowski added a fourth goal after being set up by a brilliant Reus dummy in the 73rd.
Reus made it 5-2, nonchalantly rolling the ball in after the Hamburg defence twice failed to clear, before Lewandowski headed the sixth with nine minutes to go.
The old Arjen Robben-Franck Ribery partnership was involved in both Bayern goals, with Mario Mandzukic stroking home the first and Ribery sidefooting the second.
Coach Pep Guardiola again fielded captain Philipp Lahm in a new defensive midfield role rather than his usual right back position.
Bayern, who smashed 11 goals past Hanover in their two league meetings last season, were unimpressive in the first half and could easily have been one goal and one man down at halftime.
Didier Ya Konan's shot hit the inside of Manuel Neuer's left post and bounced out while defender Jerome Boateng escaped a red card for a dangerous over-the-ball challenge.
