Complex sentence: Furious with what they considered to be an unfair decision, BSK refused to re-play the match with their arch cross-town rivals SK Jugoslavija and the match was eventually registered 3-0 in Jugoslavija's favour.
Split into simpler sentences: Furious with what they considered to be an unfair decision, BSK refused to re-play the matches. They didn't show up to replay their arch cross-town rivals SK Jugoslavija and the match was eventually registered 3-0 in Jugoslavija's favour.