Following his move to Castellón, Nieto's current-season form is down 94% on last season (Season 49→3), while his Rating eased 44→22. His peak season for form remains 2023/24 (Season 49).

Domestic career

Season	Club	Apps	G	A	Match	RTG	Season
2026/27	Castellón · 7th	2	0	0	7.3	22	3
2024/25	Celje	24	0	0	—	—	—
2023/24	Huesca · 17th	38	1	1	6.85	44	49
2022/23	Huesca · 15th	17	0	0	6.88	40	5
2021/22	Almeria · 1st	16	0	0	6.63	50	9

Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year. 6 earlier seasons and 2 youth-team spells in the full career.

Scout report

Experienced headDefensive midfielder

Juanjo Nieto is a 31-year-old defensive midfielder at Castellón, rated 22.2 overall by Field Insider's model. A seasoned veteran, he has been a fringe squad member this season (8.4% of available minutes). His defensive output reads 3.99 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Nieto.

On the season, Nieto graded 3 for current form (age-blind), on 0 goals, 0 assists and 3.987 defensive actions per 90.

Year-on-year, that's a drop on last season (Season 49 → 3). Over the 5 seasons on record his form has drifted down, peaking in 2023/24.

On long-term talent our Rating reads 22. At 31 Nieto is into the veteran stage, where the age curve weighs on the projection, and a market index of 4.2 reflects that trajectory.

From the career report

Read the full career report →

A career still climbing — Nieto is at his peak right now, and the curve hasn't flattened.

Peak: 2023/24Trending upBreakout: 2023/24Streaky4 clubs

22.2

Ratingi

below regular-starter level

2.7

Seasoni

below regular-starter level

8.4%

Minutes

limited game time

3.99

Def. actions / 90

solid defensive volume

Output in context · Castellón finished 7th of 22 · an upper-table side

Apps

3.99

Def. / 90

Tackles

Interceptions

Clean sheets

3.99 tackles, blocks & interceptions per 90 — solid defensive volume, with 2 clean sheets across 2 appearances. Behind an upper-table side (7th of 22) the side controls more games, so the defensive load is lighter — the value sits as much in composure and ball progression as in raw volume.

Strengths

Defensive volume. 3.99 tackles, blocks & interceptions per 90 — does the unseen work.

Watch points

Game time. Only 8.4% of available minutes — needs a settled run to prove the level.
Age curve. At 31, both level and resale value are on the downslope.
Level. Rates below a nailed-on top-tier starter on our model.

Outlook

Rated 22.2 overall — below regular-starter level. Defensively he reads as solid defensive volume (3.99 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.

Per 90 & availability

Minutes played %8.4%

Available fixtures2 of 2

Goals / 900

Assists / 900

Goal contribution / 900

Defensive actions / 903.987

Player flow

Goal involvements0

Pass accuracy %90

Cards / 900.57

Foul involvement / 903.987

Season-by-season progression

Rating (potential)Season (form)

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 (~9), then tapers with age. At 31, Nieto sits on 4.2, past its peak and easing. The blue line is Nieto's projected Rating — 22.2 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.

Transfer history

CastellónJun 2026 – nowFree

CCeljeuntil Jun 2026

HuescaJan 2023 – Jun 2026Free

AlmeriaJul 2021 – Jan 2023Free

OviedoAug 2019 – Jul 2021Free

HHérculesJul 2017 – Aug 2019

MallorcaJul 2016 – Jul 2017

AAtlético BalearesAug 2015 – Jul 2016

Valladoliduntil Aug 2015

About Juanjo Nieto

Juan José Nieto Zarzoso is a 31-year-old defensive midfielder who plays for Castellón, born on October 3, 1994 in Castellón de la Plana, standing 175 cm tall. He is from Spain. Castellón currently sit 7th of 22 in the Segunda División.

This season

In the current season, Juanjo Nieto has made 2 appearances with 0 goals and 0 assists across 158 minutes, with 1 yellow card.

Juanjo Nieto's next match is on August 31, 2026, when Castellón face Celta de Vigo II away in the Segunda División.

Field Insider's view

Field Insider currently rates Juanjo Nieto at 22.2 with a Season form score of 2.7. See the full scout report for strengths, watch-points and the market-value outlook.

His honours include 6 career titles — among them the Cup and the Segunda División. Full list in the career record.

Career

Across 12 recorded seasons, Juanjo Nieto has totalled 306 club appearances with 7 goals and 7 assists for 10 different clubs. His busiest campaign came in 2018/19, with 40 appearances for Hércules.

Juanjo Nieto's career has also included time at CCelje, Huesca, Almeria, Oviedo, HHércules, Mallorca, AAtlético Baleares and Valladolid.

Transfer news

No transfer news found for this player.