SB
Germany·DEF·#16

Stefan Bell

FM
FSV Mainz 05 · Bundesliga
Onside Valuation
€7.5M
+0.3Mthis week
90% confidence · €6.3M–€8.0M
12-month history

Valuation trajectory

8
Jul
7
Aug
7
Sep
7
Oct
7
Nov
7
Dec
7
Jan
7
Feb
7
Mar
7
Apr
7
May
7
Jun

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

What drives the value

Valuation pillars

On-field
54
Output
62
Minutes
31
League
92
Age curve
52
Comparable value + position

Similar players

LG
Lautaro Daniel Giannetti
Antalyaspor
€7.5M
BP
Brandon Powell
Blackburn
€7.4M
NM
Nihad Mujakić
Eyüpspor
€7.9M
YD
Yiğit Efe Demir
Fenerbahçe
€7.9M
LA
Laurenzo Monteiro Alvarenga
Nice
€6.9M
BO
Bright Osayi-Samuel
Birmingham
€8.2M

Key facts

Age34 years
PositionDEF
Foot—
Height192 cm
NationalityGermany
Confidence90%
Value range€6.3M–€8.0M

Season 2025/266.73

18
Apps
1,049
Minutes
2
Goals
1
Assists

Compare