Referee admits he was wrong to send off Bayer Leverkusen player . Bayern Munich was red-carded for handball in 3 -2 defeat by Wolfsburg . Wolfsburg scored from penalty as champions fell 11 points behind Bayer Leverkusen . Bayern went 11 points clear of fifth -placed Bayer Leverkusen after Saturday 's win .
Referee admits he was wrong to send off Borussia Dortmund player . Marcel Schmelzer was red-carded for handball in 3-2 defeat by Wolfsburg . Wolfsburg scored from penalty as champions fell 14 points behind Bayern Munich . Bayern went 11 points clear of second-placed Bayer Leverkusen after Saturday 's win .