Crystal Palace's signing of Jairo Riedewald in 2017 and subsequent decision to hand him a contract extension have proven to be a disaster, as his transfer value has plummeted during his time at Selhurst Park.

The versatile Dutchman joined the Eagles from Ajax in a deal worth £8m and was something of a regular under previous manager Roy Hodgson, making 70 appearances, in which he contributed two goals and one assist.

He was rewarded with a new three-year deal in February 2021 but has barely featured since the arrival of Patrick Vieira, which has unsurprisingly seen his value drop significantly, while he is also wasting a wage at the club.

Vieira was appointed as Palace manager in July 2021 and in the 15 months since, he has played just 131 minutes of competitive action, with it clear that the Frenchman does not rate Riedewald at all.

For some reason, the former Ajax man wasn't sold during the summer transfer window, and Vieira will surely be desperate to see him move on in the upcoming January transfer window, as it is clear that he is surplus to requirements in his squad.

Unfortunately for Palace, they look extremely unlikely to recoup the £8m they paid for Riedewald, as the CIES Football Observatory suggests that his current value is just €2m (£1.7m), which represents a 78% decrease from the fee the Eagles paid.

Riedewald has featured on the bench on four occasions this season but has been left out of the squad entirely for all of the other fixtures and it seems unlikely that he will get any playing time in the near future, so it would be best for all parties if he was allowed to move on.

Sadly for Palace, Riedewald was never able to replicate the form he showed at Ajax, as he averaged an impressive 6.97 rating in his final Eredivisie season, while he also starred in the Europa League, averaging a strong 7.06 rating from WhoScored.

His three Premier League appearances last season earned him a far-less-impressive 6.12 rating, so it is easy to see why he hasn't featured much under Vieira, and Palace will simply have to cut their losses on Riedewald and recognise that they made a big mistake in signing him.