West Ham United are enjoying yet another fine campaign, with David Moyes' side still in the conversation of securing a Champions League place whilst also being in the round of 16 stages of both the FA Cup and Europa League.
The likes of Jarrod Bowen, Declan Rice and Tomas Soucek have all proven to be bargains, but there are some members of the West Ham squad who this doesn't apply for, with winger Andriy Yarmolenko certainly being one.
The Ukrainian joined West Ham from German giants Borussia Dortmund in the summer of 2018 for a fee believed to be in the region of £17.5m as then-new manager Manuel Pellegrini planned a major overhaul.
Fast forward almost four years and the 32-year-old has accumulated just 84 minutes of Premier League football this season across 11 appearances.
Yarmolenko's first campaign in east London started relatively well, with the winger scoring twice in a 3-1 win away at Everton that September as well as contributing an assist a couple of weeks later against Manchester United.
However, after just nine league appearances the Ukrainian's season was cut short abruptly as he suffered an Achilles tendon rupture.
Since 2018/19, the winger has gone on to make 65 appearances in all competitions, scoring nine goals and assisting six, meaning that during his entire spell at West Ham so far, each goal contribution has cost around £970k.
This campaign has certainly been a frustration for Yarmolenko, with the 32-year-old yet to start in the Premier League with cup competitions his main route to game time, playing in five of the Hammers' six Europa League group games as well as all matches in the EFL Cup and FA Cup.
However, the Ukrainian is averaging 34 minutes per appearance highlighting how low down the pecking order he is at the London Stadium.
Upon signing for the east Londoners, it seemed as though West Ham had a bargain by signing the then 28-year-old for £17.5m with Yarmolenko valued at £20.7m, according to Transfermarkt.
Although age is a contributing factor, the winger's struggles have seen his market value tumble significantly.
After his injury, the former Dortmund man saw his value fall to £18m which had then plummeted to £13m by December 2019 and has since continued to decrease sharply.
The steepest decline was going from being valued at £10.8m on 9 March 2020 to £8.55m just under a month later, however, the outbreak of the pandemic did correlate with this timeline and would've certainly been a contributing factor.
Now, almost four years after arriving at the London Stadium, Yarmolenko is valued at just £3.15m, an 80% decline from the fee GSB paid to secure the Ukranian's signature.
Moreover, the winger is one of West Ham's top earners, earning £100k per week with his contract expiring in the summer. This means that when his contract expires in June, the Hammers will have paid Yarmolenko over £20m across four years with £1.8m per goal.
The 32-year-old can still be a squad player for the Hammers, especially with Moyes' side still in three competitions. However, the chances of playing regularly for West Ham in the Premier League seem incredibly thin.