Having last lost in the German league back in October 2012, Bayern are now just two matches short of Hamburg’s 30-year-old, 36-match streak.
Bayern were punished for a poor first-half in Munich when Mainz striker Shawn Parker fired home after capitalising on a mistake by centre-back Jerome Boateng. But Bayern roared back when Germany midfielder Mario Goetze came off the bench for the second-half and played a key part in the first three goals.
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