Amazon's new feature for their Premier League coverage has gone down like a treat but fans have now spotted an issue with it.
The broadcaster have the exclusive rights to 20 games, including huge midweek clashes like Luton vs Arsenal, Aston Villa vs Manchester City, Manchester United vs Chelsea and Everton vs Newcastle.
They've retained a slew of pundits and commentators and also added Sky Sports legend Jeff Stelling for a special goals show.
But a big change this time around is the addition of a brand new graphic above the scoreboard in the top left.
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Above the score, there are five bars which indicates how many substitutions each of the teams have left.
The innovation was hailed by plenty of viewers and enables them to keep track of how many subs are left.
However, some fans have spotted issues with the graphic.
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Premier League clubs voted on having the ability to make five substitutions again but the rules stipulate they only have three windows to do so.
Therefore if they do not make use of them, they technically lose the chance to make two substitutions.
Amazon's graphic sees a grey line removed every time a sub is made as commentators kept informing viewers.
But there was curiosity as to what would happen if a team made one sub at three different instances.
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The windows would be used up, but not all of the subs.
X user Jon Cook seemingly spent a bit of time wondering and then Liverpool's win against Sheffield United provided something of an explanation.
Liverpool made a total of four subs across three windows in the game, including a double change in the 67th minute as both Harvey Elliott and Darwin Nunez entered the fray.
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The problem, though, was that one line remained to indicate one substitute being available when that was not the case.
And while it's all very miniscule in the grand scheme of things, the graphic was therefore technically wrong.
By the time Dominik Szoboszlai scored Liverpool's second goal, the issue had been fixed by simply removing the feature in the 92nd minute.
It will be interesting to see if Sky Sports and TNT Sports follow suit in the near future.
Topics: Premier League, Fan Reactions, Liverpool