The Edmonton Oilers were eliminated in six games by the Golden Knights, a loss that's still causing ripples of disappointment in the locker room. Why? A potentially game-changing penalty went unnoticed, robbing the Oilers of a critical scoring opportunity. <h2>Oilers fans are furious after huge officiating mistake may have cost them the series</h2> For those who missed the action, Mattias Ekholm suffered a high-stick to the face during the closing moments of the third period. Here's a video of the incident that would make even a die-hard Golden Knights fan raise an eyebrow: <div align='center'><blockquote class='twitter-tweet' data-lang='en'><a href='https://twitter.com/Colosseum_so/status/1657967035337568256'> </a></blockquote></div> This leaves no room for doubt that a penalty flag should have been raised on that play. In the Oilers' exit interviews today, Ekholm showed up visibly marked by the impact. <div align='center' style='padding-top:20px;padding-bottom:20px;'><img src='https://i.marqueur.com/habsetlnh/i/photo/266536.webp' width='100%' border='0' alt='image' loading='lazy' defer /></div> It's no secret that the Oilers' power play has been powerful all season. Every time their special teams skated out, fans anticipated a goal. In the last game, they were only trailing by two goals. With a four-minute power play, the outcome of the game could have been different. Do you think the officiating mistake cost the Oilers their victory? As seen on Hockey Patrol - <a href='https://www.hockeypatrol.com/nhl-team/edmonton-oilers/Major-Officiating-Miscall-in-Game-Six-between-Edmonton-and-Vegas-Sparks-Controversy' class='lien_marqueur' target='_blank' rel='noopener'>Major Officiating Miscall in Game Six between Edmonton and Vegas Sparks Controversy</a>