Domestic-league season · Panetolikos.
| Competition | Apps | G | A | Min | Match |
|---|---|---|---|---|---|
 Super League 1 | 27 | 0 | 1 | 2319 | 6.64 |
Sielis's current-season form is down 25% on last season (Season 20→15), while his Rating eased 37→34. His peak season for form remains 2022/23 (Season 21).
| Season | Club | Apps | G | A | Match | RTG | Season |
|---|---|---|---|---|---|---|---|
| 2025/26 | Panetolikos · 11th | 27 | 0 | 1 | 6.64 | 34 | 15 |
| 2024/25 | Panetolikos · 2nd | 17 | 0 | 0 | 6.74 | 37 | 20 |
| 2023/24 | Volos NFC · 6th | 23 | 2 | 0 | 6.59 | 38 | 11 |
| 2022/23 | Volos NFC · 6th | 25 | 0 | 0 | 6.75 | 37 | 21 |
| 2021/22 | Volos NFC · 4th | 7 | 0 | 0 | — | 35 | 2 |
Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year.
C. Sielis is a 26-year-old central defender at Panetolikos, rated 34.4 overall by Field Insider's model, ranking 66th of 258 in the Super League 1. In his prime years, he has been a regular starter this season (71.6% of available minutes). His defensive output reads 1.75 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Sielis.
Judged on this season alone, Sielis graded 15 — a workmanlike campaign that ranks 28th of 53 of the 53 centre-backs in the Super League 1, on 5 clean sheets and 1.746 defensive actions per 90.
Year-on-year, that's a drop on last season (Season 20 → 15). Over the 5 seasons on record his form has trended upward, peaking in 2022/23.
On long-term talent our Rating reads 34, top 14% of the 53 centre-backs in the Super League 1. At 26 Sielis is in his prime years, and a market index of 15.1 reflects that trajectory.
Below his 2022/23 peak but holding a solid level — the platform for a return is there.
1.75 tackles, blocks & interceptions per 90 — light defensive volume, with 5 clean sheets across 27 appearances. Doing that for a lower-table side (11th of 14) 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. Going forward he chipped in 0 goals and 1 assist — a useful bonus from the back.
With a Rating of 34.4, Sielis carries the 7th-highest potential of the centre-backs in the Super League 1 (top 14%), and he is posting that for a lower-table side (Panetolikos finished 11th of 14) — 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 light defensive volume (1.75 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 (~15), then tapers with age. At 26, Sielis sits on 15.1, at or near its peak. The blue line is Sielis's projected Rating — 34.4 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.
