Rober Sierra

Season	Club	Apps	G	Match	RTG	Season
2026/27	Arges Pitesti	0	0	6.9	—	—
2024/25	CSA Steaua Bucureşti	27	0	—	—	—
2023/24	CSA Steaua Bucureşti	24	2	—	—	—
2022/23	Spartak Varna	17	0	—	—	—
2022/23	Inter Turku	14	0	—	—	—
2021/22	Formentera	32	0	—	—	—

Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year. 2 earlier seasons and 2 youth-team spells in the full career.

Scout report

Project playerCentral midfielder

Rober Sierra is a 30-year-old central midfielder at Arges Pitesti, enjoying a standout season — 3 goals and 1 assists in 0 appearances, a Season grade of 35, top 13% of Liga I central midfielders. On long-term scout potential he's rated 21, ranking 154th of 240 in the Liga I. An experienced operator, he has been an ever-present (95.2% of available minutes). His defensive output reads 3.44 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Sierra.

Judged on this season alone, Sierra graded 35 — an excellent campaign that ranks top 14% of the 30 central midfielders in the Liga I, on 3 goals, 1 assist and 3.439 defensive actions per 90.

We hold a single season for Sierra, so there's no year-on-year comparison to draw yet — the read above is this campaign only.

On long-term talent our Rating reads 21, 21st of 30 of the 30 central midfielders in the Liga I. At 30 Sierra is into the veteran stage, where the age curve weighs on the projection, and a market index of 2.1 reflects that trajectory.

Current potential21st of 30 central midfielders · Liga I · 0 apps Current season4th of 30 central midfielders · Liga I · 0 apps 4th-best central midfielder in the Liga I 154th in the Liga I · potential 21st-highest potential central midfielder in the Liga I

Ratingi

21st of 30 central midfielders

34.8

Seasoni

developing / rotation level

95.2%

Minutes

near ever-present

3.44

Def. actions / 90

moderate defensive volume

Output in context · Arges Pitesti finished 6th of 6 · a relegation-threatened side

Apps

Goals

Assists

Clean sheets

No league appearances recorded this season, so there's no output sample to read yet.

Strengths

Availability. On the pitch for 95.2% of available minutes — a dependable presence in the XI.

Watch points

Level. Rates below a nailed-on top-tier starter on our model.

Outlook

With a Rating of 21, Sierra carries the 21st-highest potential of the central midfielders in the Liga I of 30 — though on just 0 appearances this season, so the standing rests on a small sample. Defensively he reads as moderate defensive volume (3.44 tackles, blocks & interceptions per 90). Experienced and reliable, but the value curve is easing (1× now → 0.7× projected in three years).

Generated from Field Insider's rating model · AI-written analysis to follow.

Per 90 & availability

Minutes played %95.2%

Available fixtures40 of 40

Goals / 900.079

Assists / 900.026

Goal contribution / 900.105

Defensive actions / 903.439

Player flow

Goal involvements4

Cards / 900.105

Value & potential by age

Market valueRating

Solid = now · dashed = projected

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 (~4), then tapers with age. At 30, Sierra sits on 2.1, past its peak and easing. The blue line is Sierra's projected Rating — 21 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.

Season statistics

Bars = where he ranks among central midfielders in the Liga I with 600+ minutes this season.

Shooting

Goals3

Passing

Assists1

Defending

Tackles62

Interceptions54

Blocks15

Yellow/red cards

Yellow cards4

Red cards0

Transfer history

Arges PitestiJul 2025 – nowFree Transfer

CCSA Steaua BucureştiJul 2023 – Jul 2025Free

Spartak VarnaJan 2023 – Jul 2023

Interuntil Jan 2023

OOntinyentAug 2016 – Jan 2023

Levante(back from loan)Jul 2016 – Aug 2016

Mallorca(on loan)Feb 2016 – Jul 2016

Levanteuntil Feb 2016

About Rober Sierra

Roberto Sierra Giménez is a 30-year-old central midfielder who plays for Arges Pitesti, born on May 21, 1996 in Valencia, standing 184 cm tall. He is from Spain. Arges Pitesti currently sit 6th of 6 in the Liga I.

When Rober Sierra plays, Arges Pitesti's record this season is 0W-4D-5L — and his match ratings average 6.78 at home against 6.73 on the road.

Recent matches

May 22, 2026: 1-1 draw away at CFR 1907 Cluj (90 minutes, 6.6 rating)
May 15, 2026: 2-2 draw at home vs Rapid (45 minutes, 6.7 rating)
May 10, 2026: 1-2 loss away at Dinamo Bucuresti (45 minutes, 6.9 rating)
May 2, 2026: 0-1 loss away at Universitatea Cluj (98 minutes, 6.5 rating)
April 27, 2026: 0-1 loss at home vs Universitatea Craiova (90 minutes, 6.7 rating)
April 17, 2026: 0-1 loss at home vs CFR 1907 Cluj (45 minutes, 6.7 rating)
April 13, 2026: 0-0 draw away at Rapid (90 minutes, 6.9 rating)
April 4, 2026: 1-1 draw at home vs Dinamo Bucuresti (90 minutes, 7.2 rating)
March 21, 2026: 0-1 loss at home vs Universitatea Cluj (90 minutes, 6.6 rating)

Field Insider's view

Field Insider currently rates Rober Sierra at 21 with a Season form score of 34.8, ranking 154th of 240 central midfielders in the Liga I. See the full scout report for strengths, watch-points and the market-value outlook.

Career

Across 9 recorded seasons, Rober Sierra has totalled 222 club appearances with 5 goals and 0 assists for 8 different clubs. His busiest campaign came in 2018/19, with 35 appearances for Peralada.

Rober Sierra's career has also included time at CCSA Steaua Bucureşti, Spartak Varna, Inter, OOntinyent, Levante and Mallorca.

Transfer news

No transfer news found for this player.