This article forms part of our Total Duds feature series, which is where Football Transfer Tavern takes a look at how a player has fared since being signed or sold, using statistical figures and statements from pundits to prove how bad a deal the club got.

One signing that Everton fans must wish never happened was the acquisition of Davy Klaassen back in 2017. Ronald Koeman seemed to have started his summer transfer window off well after poaching Jordan Pickford for a record fee for a British goalkeeper. Next through the door came the manager's fellow Dutchman Klaassen, who penned a five year deal with the Blues (via BBC Sport).

It seemed a smart and apt signing for Koeman at the time, who had his finger on the pulse of the talent pool in his home country. Plus, the midfielder joined from a strong Ajax side, where he sported the armband and led his team to the 2017 Europa League final against Manchester United.

However, the manager's take proved to be a huge lapse in judgment.

Klaassen arrived at Goodison Park after Everton forked out £24.3 million for his services. The Dutch international featured just 16 times for the senior team and contributed one assist, which was against Ruzomberok in the Europa League qualifying rounds (via Transfermarkt).

The man who brought him to club was given the boot in October 2017 following a humiliating 5-2 home defeat to Arsenal which saw them slip into the relegation zone. After also failing to make the desired impact on the team, Klaassen departed just 12 months into his five year deal and signed for Werder Bremen, where he still plays today.

The sale of the 27-year-old saw Everton pocket just £12.15m, exactly half of what they paid for him the previous year meaning they made a 50% loss on him.

The whole Klaassen era is an embarrassing one for the club, who were forced to take a substantial loss on a player who couldn't find regular minutes under three different managers in the space of 12 months - in all honestly he totally flopped at Goodison Park. However, with Carlo Ancelotti now in charge, hopes are higher that a similar scenario won't happen again.

What did you think of the signing of Davy Klaassen, Blues? Join the conversation in the comments below!