Referee Wolfgang Stark admitted he had made a mistake in sending off Borussia Dortmund's Marcel Schmelzer

Image: Jurgen Klopp: Said Schmelzer "should receive the peace prize"

Referee Wolfgang Stark admitted he had made a mistake in sending off Borussia Dortmund's Marcel Schmelzer and awarding a penalty in the Westphalian club's 3-2 home defeat to Wolfsburg on Saturday.

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