Domestic-league season · Swansea.
Missed 5 of Swansea's ~46 games this season through 5 injury absences (inactive). He still appeared 30 times — a solid return given how little of the season he was available. His rating is judged mainly on the games he was fit to play.
| Competition | Apps | G | A | Min | Match |
|---|---|---|---|---|---|
 Championship | 30 | 2 | 1 | 2046 | 6.68 |
 League Cup | 3 | 0 | 1 | 218 | 6.5 |
 FA Cup | 1 | 0 | 1 | 13 | 6.3 |
Key's current-season form is down 46% on last season (Season 39→21), while his Rating eased 70→58. His peak season for form remains 2021/22 (Season 41).
| Season | Club | Apps | G | A | Match | RTG | Season |
|---|---|---|---|---|---|---|---|
| 2025/26 | Swansea · 11th | 30 | 2 | 1 | 6.68 | 58 | 21 |
| 2024/25 | Swansea · 11th | 45 | 1 | 3 | 6.77 | 70 | 39 |
| 2023/24 | Swansea · 14th | 29 | 2 | 1 | 6.8 | 64 | 20 |
| 2022/23 | Exeter City · 14th | 42 | 4 | 2 | 6.62 | 50 | 31 |
| 2021/22 | Exeter City · 2nd | 44 | 2 | 4 | 6.73 | 39 | 41 |
| 2020/21 | Exeter City · 9th | 43 | 1 | 5 | 6.61 | 37 | 29 |
Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year.
J. Key is a 26-year-old full-back at Swansea, rated 57.7 overall by Field Insider's model, ranking 256th of 493 in the Championship. In his prime years, he has been a rotation option this season (55.4% of available minutes). His defensive output reads 2.38 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Key.
Judged on this season alone, Key graded 21 — a workmanlike campaign that ranks 50th of 77 of the 77 full-backs in the Championship, on 6 clean sheets and 2.375 defensive actions per 90.
Year-on-year, that's a drop on last season (Season 39 → 21). Over the 6 seasons on record his form has drifted down, peaking in 2021/22.
On long-term talent our Rating reads 58, 38th of 77 of the 77 full-backs in the Championship. At 26 Key is in his prime years, and a market index of 73.9 reflects that trajectory.
Read the appearance count in context: Key missed 5 games through injury (inactive) out of roughly 46 this season. The 30 he did play is a solid return on the time he was fit, and his ratings are weighted toward those games rather than the ones he sat out injured.
Below his 2021/22 peak but holding a solid level — the platform for a return is there.
2.38 tackles, blocks & interceptions per 90 — moderate defensive volume, with 6 clean sheets across 30 appearances. Going forward he chipped in 2 goals and 1 assist — a useful bonus from the back.
With a Rating of 57.7, Key carries the 38th-highest potential of the full-backs in the Championship of 77. Defensively he reads as moderate defensive volume (2.38 tackles, blocks & interceptions per 90). In the prime window — at or near peak market value, so the next two seasons are the ones to cash in or build around.
Generated from Field Insider's rating model · AI-written analysis to follow.
The gold line is market value — an index (not €) blending rating, age and league. It climbs through the early 20s, peaks around ages 23–27 (~74), then tapers with age. At 26, Key sits on 73.9, at or near its peak. The blue line is Key's projected Rating — 57.7 today — recomputed at each age, so it follows the same rise-and-fall as a career matures and declines. Solid = up to today; dashed = projected.
No transfer news found for this player.
