Jurgen Klopp has taken Liverpool to the very pinnacle of domestic and European football during his five years in charge at Anfield.
There have been near misses along the way but over the last two years he has helped the Reds to claim some of the most highly sought after silverware in the game.
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During that time, the manager has welcomed a number of sensational players into his squad and pushed them to develop into the world-class stars Reds fans know and love.
However, there have been a couple of mistakes from Liverpool's revered transfer committee after the likes of sporting director Michael Edwards, chief scout Barry Hunter and head of recruitment Dave Fallows made a rare misstep in the transfer market.
It hasn't happened often over the last half a decade with the Reds' relentless pursuit of perfection, but there has been a couple of arrivals Liverpool supporters would rather forget.
But which signing made during Klopp's tenure at the club has been the worst?
This one is certain to cause a bit of debate, however, thousands of Liverpool fans voted German goalkeeper Loris Karius as the manager's worst acquisition so far.
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The ECHO ran a survey on the fifth anniversary of Klopp's appointment last Thursday and asked supporters who they thought the worst transfer had been so far.
It was Karius who claimed the unwanted first place with 72% of the vote, while Steven Caulker came in second having received 16% of votes and Dominic Solanke took third place with 9% of all votes in the survey.
