Schalke 04 manager Huub Stevens claimed that the referee made a "very disgusting" decision to award his side with a penalty in the early stages of their Revierderby against Borussia Dortmund.
Daniel Caligiuri stepped up to cancel out Mario Götze's opener from the penalty spot, but Schalke were dubiously awarded the spot kick after Julian Weigl was adjudged to have handled in the area following a review from VAR.
It proved to be the catalyst which let Schalke get a foothold in the game, but head coach Stevens was livid with the decision which led to his side's opener.