
Mouctar Diakhaby
Value picture
Where the market, the likely price and the model estimates sit.
The model rates Mouctar Diakhaby's performance-implied value at EUR 1.7M-4.4M, above the estimated acquisition range of EUR 0.5M-1.3M. Its 24-month market value projection is EUR 0.7M-1.6M. Confidence is low: no event-level data (xG, progressive actions) is available from the current free source, and injury history is unavailable.
Acquisition note: Final year of contract: selling club's leverage is reduced.
Bargain Index: not assigned
What drives the score. Not a black box: each component and its level.
Insufficient sample (< 900 league minutes)
| Performance | Above average | 61.1th pct among DEF peers (age-neutral) |
| Age | Unfavorable | 29.5 years |
| Acquisition cost | Very favorable | est. €623k vs market €1.5M |
| Expected appreciation | Very low | -28% over ~2 years (model) |
| Value gap | Very large | weak predictor on its own |
| Development | Low | |
| League translation | Big-five league | league coefficient 0.95 |
| Tactical fit | Not evaluated | Requires event/role data not available from the current free source. |
| Risk | High | |
| Data confidence | Low |
Bargain Index = percentile (among all evaluated players) of expected 2-year value relative to estimated cost. See methodology and backtests.
Market value history
Market value ≠ transfer fee ≠ acquisition cost.
Profile vs positional peers
Percentiles among 1269 evaluated DEF players with 900+ minutes.
Performance (last season, league)
- Minutes
- 544 (16% of available)
- Goals + assists / 90
- 0.17
- Context-adjusted G+A / 90
- 0.13
- xG, xA, progression
- Data unavailable
- Defensive actions
- Data unavailable
- Performance percentile
- 61 (Above average)
Adjusted = shrunk toward positional baseline for small samples, corrected for team dominance over opponents, expressed relative to positional peers in the same league.
Context
- League strength
- 0.95 (rank 2)
- Team strength (Elo)
- 1497
- Opponent strength
- 1486
- Possession, role
- Data unavailable
League strength 1.00 = average club of the big-five leagues. Elo includes continental matches.
Potential
- Development
- Low
- Trajectory
- declining
- Breakout probability
- Age > 23
- Resale range (24m)
- €665k – €1.6M
Trajectory drivers: relative output down 29% vs positional peers.
Historical comparables (8): median 2-year value change -22% (IQR -54% to -13%).
Risk profile
Overall: High
- ▲Small sample: 544 league minutes last season.
- ⚠Contract ends in 12 months: cheaper, but competition and wage demands likely.
- ⚠Played under 40% of available league minutes (injury data unavailable, cause unknown).
- ⚠Declining trajectory versus previous season.
- ⓘInjury history unavailable from current data source.
League translation
What happened to players who moved from this league to the big-five leagues (observed, not a forecast).
Already playing in a big-five league.
Output is relative to positional peers in each league. Movers are a selected group (clubs buy players who fit), so treat this as context, not a guarantee.
Season-by-season (domestic league)
Context-adjusted values are model outputs.
| Season | Club | League | Pos | Apps | Min | Min share | G | A | G+A/90 | Adj. G+A/90 | Opp. Elo | Team Elo | League str. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025/26 | Valencia CF | Laliga | CB | 8 | 544 | 16% | 1 | 0 | 0.17 | 0.13 | 1486 | 1496 | 0.95 |
| 2024/25 | Valencia CF | Laliga | CB | 13 | 651 | 19% | 2 | 0 | 0.28 | 0.17 | 1536 | 1463 | 0.95 |
| 2023/24 | Valencia CF | Laliga | CB | 14 | 1073 | 31% | 1 | 0 | 0.08 | 0.10 | 1519 | 1459 | 1.00 |
| 2022/23 | Valencia CF | Laliga | CB | 29 | 2449 | 72% | 3 | 0 | 0.11 | 0.11 | 1494 | 1444 | 0.98 |
| 2021/22 | Valencia CF | Laliga | CB | 29 | 1945 | 57% | 0 | 1 | 0.05 | 0.06 | 1544 | 1487 | 1.05 |
| 2020/21 | Valencia CF | Laliga | CB | 26 | 2082 | 61% | 1 | 0 | 0.04 | 0.06 | 1534 | 1501 | 1.10 |
| 2019/20 | Valencia CF | Laliga | CB | 21 | 1441 | 42% | 0 | 0 | 0.00 | 0.02 | 1495 | 1548 | 1.16 |
| 2018/19 | Valencia CF | Laliga | CB | 22 | 1574 | 46% | 2 | 1 | 0.17 | 0.11 | 1520 | 1653 | 1.14 |
| 2017/18 | Olympique Lyon | Ligue 1 | CB | 12 | 725 | 21% | 1 | 0 | 0.12 | 0.08 | 1441 | 1645 | 0.85 |
| 2016/17 | Olympique Lyon | Ligue 1 | CB | 22 | 1930 | 56% | 1 | 2 | 0.14 | 0.10 | 1447 | 1604 | 0.88 |
Cups & continental competitions
| Season | Competition | Club | Apps | Min | G | A | Avg opp. Elo |
|---|---|---|---|---|---|---|---|
| 2025/26 | Copa Del Rey | Valencia CF | 1 | 45 | 0 | 0 | — |
| 2024/25 | Copa Del Rey | Valencia CF | 1 | 64 | 0 | 0 | — |
| 2023/24 | Copa Del Rey | Valencia CF | 1 | 90 | 0 | 0 | — |
| 2022/23 | Copa Del Rey | Valencia CF | 1 | 45 | 0 | 0 | — |
| 2021/22 | Copa Del Rey | Valencia CF | 8 | 735 | 0 | 1 | — |
| 2020/21 | Copa Del Rey | Valencia CF | 1 | 24 | 0 | 0 | — |
| 2019/20 | Uefa Champions League | Valencia CF | 5 | 310 | 0 | 0 | 1632 |
| 2019/20 | Copa Del Rey | Valencia CF | 3 | 300 | 0 | 0 | — |
| 2018/19 | Uefa Europa League | Valencia CF | 6 | 540 | 1 | 0 | 1572 |
| 2018/19 | Copa Del Rey | Valencia CF | 7 | 457 | 0 | 0 | — |
| 2018/19 | Uefa Champions League | Valencia CF | 3 | 270 | 0 | 0 | 1676 |
| 2017/18 | Uefa Europa League | Olympique Lyon | 5 | 450 | 1 | 0 | 1506 |
| 2016/17 | Uefa Europa League | Olympique Lyon | 8 | 750 | 3 | 0 | 1611 |
| 2016/17 | Uefa Champions League | Olympique Lyon | 3 | 270 | 0 | 0 | 1757 |
Small continental samples are shown for context only and are not over-weighted.
Historical comparables
Most similar profiles 2+ years ago (same position group) and what happened next. Chosen by similarity only — failures included.
| Player (then) | Age | Value then | ~2y later | Outcome |
|---|---|---|---|---|
| Diego Novaretti Serie A · 2014 | 29 | €1.2M | €1.0M | flat |
| Lucas Mareque Ligue 1 · 2013 | 30 | €1.0M | €750k | fell |
| Niko Bungert Bundesliga · 2014 | 28 | €2.5M | €2.5M | flat |
| Lautaro Giannetti Serie A · 2024 | 31 | €2.5M | €1.2M | fell |
| Shkodran Mustafi Laliga · 2022 | 30 | €2.0M | €800k | fell |
| Juanma Ortiz Laliga · 2013 | 31 | €1.2M | €300k | fell |
| Deiver Machado Ligue 1 · 2022 | 29 | €1.8M | €4.0M | rose |
| Pedro Alcalá Laliga · 2018 | 29 | €800k | €650k | flat |
Transfer history
Fees as reported by the source; undisclosed fees shown as unknown, never estimated.
| Date | From | To | Fee | MV at time |
|---|---|---|---|---|
| 1 Jul 2018 | Lyon | Valencia | €15.0M | €10.0M |
| 1 Jul 2016 | Olymp. Lyon B | Lyon | Unknown | Data unavailable |
| 1 Jul 2014 | Olymp. Lyon U19 | Olymp. Lyon B | Unknown | Data unavailable |
| 1 Aug 2013 | USSA Vertou U17 | Olymp. Lyon U19 | Free / loan | Data unavailable |
| 1 Jul 2011 | Vertou Jugend | USSA Vertou U17 | Unknown | Data unavailable |
| 1 Jul 2010 | FC Nantes Yth. | Vertou Jugend | Free / loan | Data unavailable |
| 1 Jul 2009 | Vertou Jugend | FC Nantes Yth. | Free / loan | Data unavailable |
MoneyballAI identifies statistical opportunities from available data. A player flagged as a potential bargain is not guaranteed to succeed, to transfer, to rise in value, or to generate resale profit. Market values, fees and contracts come from third-party sources; ranges are model estimates with stated confidence.