Bayern Munich came from behind to thrash Mainz at Allianz Arena, with six different players on target for the hosts.
Jean-Paul Boetius gave the visitors a shock lead, but Benjamin Pavard’s acrobatic effort and a David Alaba free-kick turned the game on its head.
Bayern extended their lead through Ivan Perisic, before Kingsley Coman added a fourth.
Robert Lewandowski and Alphonso Davies struck late on to seal an emphatic win.
The Bundesliga champions have scored 12 goals in their last two games against Mainz, having won 6-0 in last season’s corresponding fixture.
The victory keeps Bayern two points behind RB Leipzig, who maintained their winning start to the campaign with a 3-1 victory at Borussia Monchengladbach on Friday.
Union Berlin claimed the first Bundesliga victory in their history as they stunned Borussia Dortmund with a 3-1 victory.
Elsewhere, Jonjoe Kenny scored his first goal as Schalke beat Hertha Berlin 3-0 for a first Bundesliga win under manager David Wagner.