Domestic-league season · Fortuna Düsseldorf.
| Competition | Apps | G | A | Min | Match |
|---|---|---|---|---|---|
 2. Bundesliga | 19 | 0 | 0 | 991 | 6.48 |
 DFB Pokal | 2 | 0 | 0 | 127 | 6.3 |
Heyer's current-season form is down 69% on last season (Season 32→10), while his Rating eased 37→23. His peak season for form remains 2021/22 (Season 41).
| Season | Club | Apps | G | A | Match | RTG | Season |
|---|---|---|---|---|---|---|---|
| 2025/26 | Fortuna Düsseldorf · 17th | 19 | 0 | 0 | 6.48 | 23 | 10 |
| 2024/25 | Fortuna Düsseldorf · 6th | 19 | 1 | 0 | 6.57 | 37 | 32 |
| 2023/24 | Hamburger SV · 4th | 17 | 1 | 0 | 6.74 | 39 | 15 |
| 2022/23 | Hamburger SV · 3rd | 27 | 3 | 3 | 6.84 | 57 | 38 |
| 2021/22 | Hamburger SV · 3rd | 32 | 6 | 3 | 7.23 | 61 | 41 |
| 2020/21 | Hamburger SV · 4th | 32 | 2 | 0 | 6.96 | 65 | 32 |
Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year.
M. Heyer is a 31-year-old defensive midfielder at Fortuna Düsseldorf, rated 23.3 overall by Field Insider's model, ranking 303rd of 320 in the 2. Bundesliga. A seasoned veteran, he has been a fringe squad member this season (32.4% of available minutes). His defensive output reads 3.54 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Heyer.
Judged on this season alone, Heyer graded 10 — a workmanlike campaign that ranks 33rd of 37 of the 37 defensive midfielders in the 2. Bundesliga, on 0 goals, 0 assists and 3.542 defensive actions per 90.
Year-on-year, that's a drop on last season (Season 32 → 10). Over the 6 seasons on record his form has drifted down, peaking in 2021/22.
On long-term talent our Rating reads 23, 36th of 37 of the 37 defensive midfielders in the 2. Bundesliga. At 31 Heyer is into the veteran stage, where the age curve weighs on the projection, and a market index of 11.1 reflects that trajectory.
Below his 2021/22 peak but holding a solid level — the platform for a return is there.
3.54 tackles, blocks & interceptions per 90 — solid defensive volume, with 2 clean sheets across 19 appearances. Doing that for a relegation-threatened side (17th of 18) is harder than the bare numbers suggest: a back line under more pressure has to defend more often and protects fewer leads, so the volume — and any clean sheets — carry real weight.
With a Rating of 23.3, Heyer carries the 36th-highest potential of the defensive midfielders in the 2. Bundesliga of 37, and he is posting that for a relegation-threatened side (Fortuna Düsseldorf finished 17th of 18) — individual numbers are harder to earn on a struggling team, so his underlying level likely sits a touch above the ranking. Defensively he reads as solid defensive volume (3.54 tackles, blocks & interceptions per 90). Veteran phase — a short-term, lower-fee proposition as both level and value decline (0.9× and falling).
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 (~25), then tapers with age. At 31, Heyer sits on 11.1, past its peak and easing. The blue line is Heyer's projected Rating — 23.3 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.
