Key takeaways: 

• Bochum's last victory over Bayern Munich was in February 2004.
• Bochum shocked heads Bayern Munich as the defending champions conceded four goals before half-time in a Bundesliga game for the first time since 1975.

Bochum defeated Bayern Munich by a two-goal lead: 

Robert Lewandowski gave Bayern an early lead, only for Christopher Antwi-Adjei to tie the host's level shortly after.

A penalty by ex-Brighton forward Jurgen Locadia flashed a blast of three goals six minutes ere the half.

Before Lewandowski drew one back late, Cristian Gamboa and Gerrit Holtmann were also on target.

That was insufficient to avoid a fourth defeat in 22 league matches for Bayern. At the top, they are nine points ahead before second-placed Borussia Dortmund sees Union Berlin on Sunday.

Bochum returned to the German top flight this time after an 11-year absence and came into the match 11th in the table, without a victory in three league matches.

But they marked their first victory over Bayern in 18 years, allowing them to earn some revenge for the reverse fixture in September.

Bayern led 4-0 at half-time before claiming a 7-0 win - their most significant in the league so far this season.

Bayern conceded so many by half-time in the league during a 6-0 defeat at Eintracht Frankfurt in November 1975.