The latest research from the CIES Football Observatory suggests that Sancho's transfer value has reached an astonishing €87.9m on 1st December. That figure compares to the €9.7m he was objectively worth at the start of September, a staggering increase of over 800%.
Sancho, who left Manchester City for Dortmund in the summer of 2017 for around €10m, has thrived after being handed regular first team opportunities. In what has become a breakout season, the teenager has managed 12 combined goals and assists in 14 Bundesliga games.
No other player in the world has seen their transfer value increase by anything like as much in the same period of time, whether it be in absolute or relative terms.
Juventus have already seen a significant jump in transfer value from summer signing Joao Cancelo, who is now worth an estimated €74.2m compared to €27.8m three short months ago.
Liverpool left-back Andrew Robertson continues his meteoric rise and is now worth €32m more than he was in September, from €47.8m to €79.8m. Everton's Richarlison and Paris Saint-Germain defender Thilo Kehrer are others whose transfer value has risen by at least €30m.
Already highly valued Manchester City winger Bernardo Silva and Liverpool forward Sadio Mane have both seen their respective transfer values closing in on the €130m mark.
Aymeric Laporte is justifying the faith Manchester City showed in him last January and is now worth over €100m after a €29m jump from €74.5m. Liverpool full-back Trent Alexander-Arnold is another in that bracket after his value rose from €83.4m to €109.2m in the last three months.
Kylian Mbappe, now worth €216.3m overall, completes the top 10 after a €25.1m rise.
Manchester United fans will be delighted to see Luke Shaw in the top 20 of both absolute and relative increase after his transfer value leapt up by close to 250% from €10m to €33.7m. His contract renewal is likely a major factor behind that, as well as improved performances.
Bournemouth striker Callum Wilson and Leicester defender Ben Chilwell, both of whom have come into a new-look England squad this season, also feature in the top 20 after transfers value rises of €20.6m and €20.5m respectively. Wilson in particular is now worth an estimated €33.6m after eight Premier League goals this season and scoring on his international debut.
Inter have continued to be a resurgent force in Italy this season and Milan Skriniar, Matteo Politano and Marcelo Brozovic have all had transfer value rises in excess of €20m.
| Player | Transfer Value | Change Since 1st Sept. |
| Jadon Sancho (Borussia Dortmund) | €87.9m | + €78.2m |
| Joao Cancelo (Juventus) | €74.2m | + €46.4m |
| Andrew Robertson (Liverpool) | €79.8m | + €32m |
| Richarlison (Everton) | €76.3m | + €31m |
| Thilo Kehrer (Paris Saint-Germain) | €54.7m | + €30.4m |
| Bernardo Silva (Manchester City) | €128.6m | + €29.8m |
| Sadio Mane (Liverpool) | €125.3m | + €29.6m |
| Aymeric Laporte (Manchester City) | €103.5m | + €29m |
| Trent Alexander-Arnold (Liverpool) | €109.2m | + €25.8m |
| Kylian Mbappe (Paris Saint-Germain) | €216.3m | + €25.1m |
| Milan Skriniar (Inter) | €70.2m | + €24.5m |
| Angel Di Maria (Paris Saint-Germain) | €46.6m | + €24.2m |
| Luke Shaw (Manchester United) | €33.7m | + €23.7m |
| Jose Gaya (Valencia) | €42.5m | + €23.1m |
| Tanguy Ndombele (Lyon) | €67.3m | + €22.3m |
| Matteo Politano (Inter) | €49.6m | + €21.2m |
| Marcelo Brozovic (Inter) | €45.8m | + €21.1m |
| Callum Wilson (Bournemouth) | €33.6m | + €20.6m |
| Ben Chilwell (Leicester) | €38.6m | + €20.5m |
| Fabian Ruiz (Napoli) | €61.5m | + €20m |
Source: 90min
