Field Insider
Centre-backChileEkstraklasa

Francisco Sierralta

Squad depthPiast Gliwice · 29 yrsStarterOn loan from Auxerre

Profile

Full nameFrancisco Andrés Sierralta Carvallo
PositionCentre-back
NationalityChile
Age29
Date of birth6 May 1997
BirthplaceSantiago
Height190 cm
Shirt number#4
ClubPiast Gliwice
More about F. Sierralta →
Centre-back

Season stats

Full career & schedule →
10
Appearances
1
Goals
0
Assists
862
Minutes

Domestic-league season · Auxerre.

Also this season

Parent club Auxerre — Coupe de France: 1 apps, 0g 0a, 90 min

The headline Season rating covers his time at Piast Gliwice; availability counts only fixtures while in this squad.

Scout report

Squad depthCentral defender

F. Sierralta is a 29-year-old central defender at Piast Gliwice, rated 45.2 overall by Field Insider's model, ranking 19th of 188 on scout potential in the Ekstraklasa. An experienced operator, he has been a rotation option this season (56.3% 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 28 — an excellent campaign that ranks top 9% of the 35 centre-backs in the Ekstraklasa, on 3 clean sheets and 2.819 defensive actions per 90.

Year-on-year, that's a drop on last season (Season 25 → 14). Over the 6 seasons on record his form has drifted down, peaking in 2020/21.

On long-term talent our Rating reads 45, top 12% of the 35 centre-backs in the Ekstraklasa. At 29 Sierralta is in his prime years, and a market index of 3.7 reflects that trajectory.

From the career report
Read the full career report →

Below his 2020/21 peak but holding a solid level — the platform for a return is there.

Peak: 2020/21Holding levelStepped up 2025/26Injury-hit 2025/26
Current potential4th of 35 centre-backs · Ekstraklasa · 10 appsCurrent season3rd of 35 centre-backs · Ekstraklasa · 10 apps3rd-best centre-back in the Ekstraklasa19th in the Ekstraklasa · potential4th-highest potential centre-back in the Ekstraklasa
45.2
Ratingi
4th of 35 centre-backs
28
Seasoni
below regular-starter level
56.3%
Minutes
rotation minutes
2.82
Def. actions / 90
moderate defensive volume

Output in context · Piast Gliwice finished 8th of 18 · a mid-table side

10
Apps
2.82
Def. / 90
14
Tackles
8
Interceptions
3
Clean sheets

2.82 tackles, blocks & interceptions per 90 — moderate defensive volume, with 3 clean sheets across 10 appearances. Going forward he chipped in 1 goal and 0 assists — a useful bonus from the back.

Watch points

  • Game time. Only 56.3% of available minutes — needs a settled run to prove the level.
  • Level. Rates below a nailed-on top-tier starter on our model.

Outlook

With a Rating of 45.2, Sierralta carries the 4th-highest potential of the centre-backs in the Ekstraklasa of 35 — 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.

Season statistics

Bars = where he ranks among centre-backs in the Ekstraklasa with 600+ minutes this season.

Shooting

Goals1
Shots on target2
Shots4

Passing

Assists0
Chances created2
Passes405
Pass accuracy89%

Possession

Successful dribbles2
Dribble success100%
Duels won53
Duels won %68.8%
Fouls won5

Defending

Tackles14
Interceptions8
Blocks5
Fouls committed8

Yellow/red cards

Yellow cards2
Red cards0

Transfer news

No transfer news found for this player.