Mario Gotze scores twice as Bayer Leverkusen extend Bundesliga lead . He also sets up first goal for Mario Gotze in 3 -1 win at Bayer Leverkusen . In Saturday 's fixtures , Mainz travel to Stuttgart while fifth-placed defending champions Bayern Munich will try to reduce a 17-point deficit on Dortmund with victory at Wolfsburg . Leverkusen fall 13 points behind and drop to third place on goal difference . Dortmund , seeking first German league title since 2002 , have 15 wins from 15 matches .
Mario Gotze scores twice as Bayer Leverkusen extend Bundesliga lead . He also sets up first goal for Mario Gotze in 3 -1 win at Bayer Leverkusen . Leverkusen fall 13 points behind and drop to third place on goal difference . Dortmund , seeking first German league title since 2002 , have 15 wins from 15 matches .