Sung-yueng Ki
37 yrs · Defensive midfielder (also CM) · Korea, South
Football Club Pohang Steelers · K League 1 · Foot: right · Height: 188 cm
Contract: Data unavailable
No model evaluation for this player. MoneyballAI evaluates players with at least 450 league minutes last season in leagues where match-level player data is available from the current free source (14 European top divisions). Market value and transfer history are still shown below.
Market value
€375k
Updated 6 days ago
Estimated acquisition
—
Estimated · 20–80% range
Model value
—
Performance-implied · estimated
Projected (24m)
—
Resale range · estimated
Potential value gap
—
Model value − acquisition
Market value history
Market value ≠ transfer fee ≠ acquisition cost.
Highest recorded: €10.0M
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. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2019/20 | Newcastle United | Premier League | DM | 3 | 136 | 4% | 0 | 0 | 0.00 | 0.09 | 1449 | 1476 | 1.14 |
| 2019/20 | RCD Mallorca | Laliga | DM | 1 | 8 | 0% | 0 | 0 | 0.00 | 0.18 | 1506 | 1415 | 1.16 |
| 2018/19 | Newcastle United | Premier League | DM | 18 | 1302 | 38% | 0 | 1 | 0.07 | 0.10 | 1545 | 1532 | 1.22 |
| 2017/18 | Swansea City | Premier League | CM | 25 | 1869 | 55% | 2 | 2 | 0.19 | 0.27 | 1559 | 1421 | 1.15 |
| 2016/17 | Swansea City | Premier League | CM | 23 | 1287 | 38% | 0 | 1 | 0.07 | 0.16 | 1545 | 1455 | 1.07 |
| 2015/16 | Swansea City | Premier League | CM | 28 | 1849 | 54% | 2 | 1 | 0.15 | 0.19 | 1540 | 1508 | 1.08 |
| 2014/15 | Swansea City | Premier League | DM | 33 | 2690 | 79% | 8 | 1 | 0.30 | 0.25 | 1533 | 1498 | 1.06 |
| 2013/14 | Sunderland AFC | Premier League | CM | 27 | 2185 | 64% | 3 | 2 | 0.21 | 0.24 | 1547 | 1465 | 1.12 |
| 2013/14 | Swansea City | Premier League | DM | 1 | 13 | 0% | 0 | 0 | 0.00 | 0.20 | 1747 | 1491 | 1.12 |
| 2012/13 | Swansea City | Premier League | DM | 29 | 2041 | 60% | 0 | 3 | 0.13 | 0.16 | 1519 | 1469 | 1.07 |
Cups & continental competitions
| Season | Competition | Club | Apps | Min | G | A | Avg opp. Elo |
|---|---|---|---|---|---|---|---|
| 2019/20 | Fa Cup | Newcastle United | 1 | 37 | 0 | 0 | — |
| 2017/18 | Fa Cup | Swansea City | 6 | 345 | 0 | 1 | — |
| 2016/17 | Fa Cup | Swansea City | 1 | 90 | 0 | 0 | — |
| 2013/14 | Fa Cup | Sunderland AFC | 1 | 63 | 0 | 0 | — |
| 2013/14 | Uefa Europa League Qualifying | Swansea City | 2 | 45 | 0 | 0 | 1409 |
| 2012/13 | Fa Cup | Swansea City | 2 | 120 | 0 | 1 | — |
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.
No comparables computed for this player.
Transfer history
Fees as reported by the source; undisclosed fees shown as unknown, never estimated.
| Date | From | To | Fee | MV at time |
|---|---|---|---|---|
| 3 Jul 2025 | FC Seoul | Pohang Steelers | Unknown | €450k |
| 20 Jul 2020 | RCD Mallorca | FC Seoul | Free / loan | €2.4M |
| 31 Jan 2020 | Newcastle | RCD Mallorca | Free / loan | €4.5M |
| 1 Jul 2018 | Swansea | Newcastle | Free / loan | €7.0M |
| 31 May 2014 | Sunderland | Swansea | Free / loan | €6.5M |
| 31 Aug 2013 | Swansea | Sunderland | Free / loan | €8.0M |
| 24 Aug 2012 | Celtic | Swansea | €7.0M | €3.5M |
| 1 Jan 2010 | FC Seoul | Celtic | €2.4M | €3.0M |
| 1 Jan 2006 | Kumho HS (-10) | FC Seoul | Free / loan | Data unavailable |
| 1 Sept 2004 | John Paul Coll. | Kumho HS (-10) | 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.