WM
England·GK·#25

William John Mannion

CH
Charlton · Championship
Onside Valuation
€9.2M
-0.5Mthis week
90% confidence · €7.9M–€10.0M
12-month history

Valuation trajectory

9
Jul
8
Aug
9
Sep
9
Oct
9
Nov
10
Dec
9
Jan
8
Feb
9
Mar
9
Apr
9
May
10
Jun

Onside model estimate. Values are derived from the methodology, not a market quote.

What drives the value

Valuation pillars

On-field
67
Output
20
Minutes
24
League
52
Age curve
98
Comparable value + position

Similar players

RM
Radosław Majecki
Stade Brestois 29
€9.4M
BG
Bahadır Han Güngördü
Konyaspor
€9.0M
HN
Hugo de Souza Nogueira
Corinthians
€8.9M
GB
Gavin Okeroghene Bazunu
Southampton
€9.6M
KC
Kauê Vinicius de Souza Camargo
Corinthians
€9.8M
CP
Carlos Miguel dos Santos Pereira
Palmeiras
€10.0M

Key facts

Age27 years
PositionGK
Foot—
Height186 cm
NationalityEngland
Confidence90%
Value range€7.9M–€10.0M

Season 2025/267.14

9
Apps
810
Minutes
0
Goals
0
Assists

Compare