Domestic-league season · Cardiff.
| Competition | Apps | G | A | Min | Match |
|---|---|---|---|---|---|
 League One | 41 | 2 | 4 | 1856 | 6.79 |
 League Cup | 4 | 1 | 0 | 215 | 6.95 |
 EFL Trophy | 2 | 0 | 0 | 180 | 6.7 |
Turnbull's current-season form is up 144% on last season (Season 9→22), while his Rating eased 54→38. His peak season for form remains 2020/21 (Season 33).
| Season | Club | Apps | G | A | Match | RTG | Season |
|---|---|---|---|---|---|---|---|
| 2025/26 | Cardiff · 2nd | 41 | 2 | 4 | 6.79 | 38 | 22 |
| 2024/25 | Cardiff · 24th | 24 | 1 | 0 | 6.93 | 54 | 9 |
| 2023/24 | Cardiff · 12th | 17 | 0 | 1 | 6.68 | 57 | 6 |
| 2022/23 | Celtic · 1st | 28 | 4 | 6 | 7.04 | 48 | 20 |
| 2021/22 | Celtic · 1st | 25 | 6 | 4 | 7.6 | 52 | 27 |
| 2020/21 | Celtic · 2nd | 31 | 8 | 5 | 7.47 | 53 | 33 |
Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year.
D. Turnbull is a 27-year-old defensive midfielder at Cardiff, rated 38.2 overall by Field Insider's model, ranking 253rd of 482 in the League One. In his prime years, he has been a rotation option this season (44.8% of available minutes). His defensive output reads 2.67 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Turnbull.
Judged on this season alone, Turnbull graded 22 — a workmanlike campaign that ranks 38th of 63 of the 63 defensive midfielders in the League One, on 2 goals, 4 assists and 2.667 defensive actions per 90.
Year-on-year, that's a clear step up on last season (Season 9 → 22). Over the 6 seasons on record his form has drifted down, peaking in 2020/21.
On long-term talent our Rating reads 38, 43rd of 63 of the 63 defensive midfielders in the League One. At 27 Turnbull is in his prime years, and a market index of 23.7 reflects that trajectory.
Below his 2020/21 peak but holding a solid level — the platform for a return is there.
2.67 tackles, blocks & interceptions per 90 — moderate defensive volume, with 8 clean sheets across 41 appearances. Behind a title-challenging side (2nd of 24) the side controls more games, so the defensive load is lighter — the value sits as much in composure and ball progression as in raw volume. Going forward he chipped in 2 goals and 4 assists — a useful bonus from the back.
With a Rating of 38.2, Turnbull carries the 43rd-highest potential of the defensive midfielders in the League One of 63. Defensively he reads as moderate defensive volume (2.67 tackles, blocks & interceptions per 90), with a bit more on the ball than most in the role. 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 (~24), then tapers with age. At 27, Turnbull sits on 23.7, at or near its peak. The blue line is Turnbull's projected Rating — 38.2 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.
€2.3M total transfer fees · 2 moves
No transfer news found for this player.
