For Jurgen Klopp, anger and hurt is not an option, only fight will do. He and his team of champions have been forced to sit and watch this week, as two of their greatest rivals battle it out for three of the biggest honours in world football.
While the Manchesters of City and United pursue European glory either side of a potentially defining weekend in the title race, Liverpool have been reduced - many would say humbled - to the role of bit part players.
Their only input on Sunday could be to hand the Premier League to City, if they can muster some reserves of defiance to beat Manchester United.
To some, that is a humiliation for the side which conquered the world a year ago. For Klopp, it is merely the starting point on the path to
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