Brilliant Brandt fires Leverkusen to 5-1 rout of Mainz
Leverkusen, knocked out 2-1 by second division Heidenheim on Tuesday, racked up a third successive league victory and is firmly in the hunt for European qualification.
The team is in fifth spot, four points behind fourth-place Leipzig, which hosts Eintracht Frankfurt on Saturday.
Fifth and sixth in the Bundesliga qualifies for the Europa League while the top four advance to the Champions League.
It was Leverkusen's third league win from four since Dutch coach Peter Bosz took over from the fired Heiko Herrlich.