Bayer Leverkusen on Sunday pulled off an outstanding 5-2 win at Bundesliga title contenders Borussia Dortmund, who now trail leaders Bayern Munich by nine points. Wolfsburg also enjoyed a good day with a much-needed triumph after nine winless league games, thanks a 4-1 victory over league bottom club Greuther Fürth. Bayern extended their advantage at the top of the table after a hard-fought 3-2 win against RB Leipzig on Saturday. Things didn’t start well for Dortmund after Dan-Azel Zagadou had a sloppy pass cut by Patrik Schick. His shot was palmed by keeper Gregor Kobel, but the ball hit Dort…