article_snippet: German referee Deniz Aytekin eventually abandoned the match after a missed second-half penalty by Russia's Roman Shirokov led to a mass brawl on the pitch while riot police struggled to contain supporters off it.
article_snippet: VIDEOS Scroll down to watch footage of mass brawl and flare incident .
article_snippet: Riot police clash with Montenegrin fans after the game is abandoned following a pitch brawl . '
highlights_snippet: Match was abandoned following a mass brawl as riot police tackled fans .
  