A bit like selling your house, the transfer value of a football player is only known for sure when a deal goes through.

Anything in life is worth what somebody is prepared to pay.

However, the best and most consistent website for giving the transfer value of a player at any given time is transfermkt.co.uk

They give an overall value of £107.6m for the entire Newcastle United squad.

As I’ve said above, a transfer value is subjective until any deal is done for a player, but transfermrkt use the same criteria for every player and every squad.

A player’s age, length of contract remaining, previous transfer fee, number of games played, goals scored, international caps and so on, go to give the best possible estimate for each player.

This is their full rundown for the Newcastle squad:

£13.2m Moussa Sissoko

£8.8m Remy Cabella

£7.9m Siem de Jong

£7.9m Tim Krul

£7.0m Cheick Tiote

£7.0m Papiss Cisse

£6.2m Yoan Gouffran

£5.7m Daryl Janmaat

£5.3m Jack Colback

£5.2m Emmanuel Riviere

£4.8m Ayoze Perez

£3.5m Vurnon Anita

£2.4m Steven Taylor

£2.2m Mike Williamson

£2.2m Fabricio Coloccini

£2.2m Paul Dummett

£1.8m Massadio Haidara

£1.3n Jonas Gutierrez

£0.9m Rob Elliot

£0.9m Gabriel Obertan

£0.9m Mehdi Abeid

£0.9n Ryan Taylor

£0.4m Rolando Aarons

£0.4m Curtis Good

£0.4m Sammy Ameobi

£0.2m Jak Alnwick

Young players with very few appearances such as Rolando Aarons are obviously hard to evaluate, as they might have shown hints of promise but when you haven’t even started a single Premier League match you can’t give anything more than a basic estimate.

Obviously there will be many different opinions when analysing the above values, but I do think that aside from Moussa Sissoko we don’t have anybody who would go for more than £10m if they went this summer.

The likes of Janmaat has obviously enhanced his value after proving himself in England, while free transfer Jack Colback naturally has a realistic value attached to him.

Ayoze Perez is obviously potentially a star of the future and his value has increased from the bargain £1.5m fee last summer.

Others such as Fabricio Coloccini are depreciating assets as age catches up with them.

Comments and opinions/observations welcome below.