Domestic-league season · Auxerre.
Missed 8 of Auxerre's ~34 games this season through 8 injury absences (injury, muscle). He still appeared 10 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 |
|---|---|---|---|---|---|
 Ligue 1 | 10 | 1 | 0 | 862 | 6.84 |
 Coupe de France | 1 | 0 | 0 | 90 | 7 |
Following his move to Auxerre, Sierralta's current-season form is down 28% on last season (Season 25→18), while his Rating eased 50→41. His peak season for form remains 2020/21 (Season 39).
| Season | Club | Apps | G | A | Match | RTG | Season |
|---|---|---|---|---|---|---|---|
| 2025/26 | Auxerre · 15th | 10 | 1 | 0 | 6.84 | 41 | 18 |
| 2024/25 | Watford · 14th | 42 | 0 | 0 | 6.94 | 50 | 25 |
| 2023/24 | Watford · 15th | 27 | 0 | 1 | 6.74 | 55 | 22 |
| 2022/23 | Watford · 11th | 18 | 1 | 0 | 6.91 | 59 | 19 |
| 2021/22 | Watford · 19th | 5 | 0 | 0 | 6.74 | 66 | 5 |
| 2020/21 | Watford · 2nd | 26 | 1 | 0 | 7.03 | 68 | 39 |
Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year.
| Competition | Apps | G |
|---|---|---|
| Friendlies | 1 | 0 |
Caps & goals this season.
F. Sierralta is a 29-year-old central defender at Auxerre, rated 41.1 overall by Field Insider's model, ranking 269th of 324 in the Ligue 1. An experienced operator, he has been a rotation option this season (36.8% of available minutes). His defensive output reads 2.82 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Sierralta.
Judged on this season alone, Sierralta graded 18 — a workmanlike campaign that ranks 46th of 53 of the 53 centre-backs in the Ligue 1, on 3 clean sheets and 2.819 defensive actions per 90.
Year-on-year, that's a drop on last season (Season 25 → 18). Over the 6 seasons on record his form has drifted down, peaking in 2020/21.
On long-term talent our Rating reads 41, 43rd of 53 of the 53 centre-backs in the Ligue 1. At 29 Sierralta is in his prime years, and a market index of 36.6 reflects that trajectory.
Read the appearance count in context: Sierralta missed 8 games through injury (injury, muscle) out of roughly 34 this season. The 10 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 2020/21 peak but holding a solid level — the platform for a return is there.
2.82 tackles, blocks & interceptions per 90 — moderate defensive volume, with 3 clean sheets across 10 appearances. Doing that for a lower-table side (15th 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. Going forward he chipped in 1 goal and 0 assists — a useful bonus from the back.
With a Rating of 41.1, Sierralta carries the 43rd-highest potential of the centre-backs in the Ligue 1 of 53 — though on just 10 appearances this season, so the standing rests on a small sample. Defensively he reads as moderate defensive volume (2.82 tackles, blocks & interceptions per 90). Experienced and reliable, but the value curve is easing (1.1× now → 0.8× projected in three years).
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 (~67), then tapers with age. At 29, Sierralta sits on 36.6, past its peak and easing. The blue line is Sierralta's projected Rating — 41.1 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.
