Field Insider

Marcos Alonso

Experienced headCelta Vigo · 35 yrs

Profile

Full nameMarcos Alonso Mendoza
PositionFull-back
NationalitySpain
Age35
Date of birth28 Dec 1990
BirthplaceMadrid
Height188 cm
Shirt number#20
ClubCelta Vigo
Full-back
32
Appearances
1
Goals
0
Assists
2770
Minutes

Domestic-league season · Celta Vigo.

Injury-affected season

Missed 6 of Celta Vigo's ~38 games this season through 6 injury absences (jumpers knee, knee, injury). He still appeared 32 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.

Performance data · by competition

CompetitionAppsGAMinMatch
La Liga321027707.06
UEFA Europa League11009957.04

Scout report

Experienced headFull-back

Marcos Alonso is a 35-year-old full-back at Celta Vigo, enjoying a standout season — 1 goals and 0 assists in 32 appearances, a Season grade of 39, top 23% of La Liga full-backs. On long-term scout potential he's rated 33.7, ranking 328th of 389 in the La Liga. A seasoned veteran, he has been an ever-present (96.2% of available minutes). His defensive output reads 2.83 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Alonso.

Judged on this season alone, Alonso graded 39 — a strong campaign that ranks top 24% of the 65 full-backs in the La Liga, on 8 clean sheets and 2.827 defensive actions per 90.

Year-on-year, that's a clear step up on last season (Season 26 → 39). Over the 6 seasons on record his form has trended upward, peaking in 2021/22.

On long-term talent our Rating reads 34, 53rd of 65 of the 65 full-backs in the La Liga. At 35 Alonso is into the veteran stage, where the age curve weighs on the projection, and a market index of 11.2 reflects that trajectory.

Read the appearance count in context: Alonso missed 6 games through injury (jumpers knee, knee, injury) out of roughly 38 this season. The 32 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.

From the career report
Read the full career report →

Below his 2021/22 peak but holding a solid level — the platform for a return is there.

Peak: 2021/22Trending upBreakout: 2021/22Injury-hit 2025/26
Current potential53rd of 65 full-backs · La LigaCurrent seasonTop 24% full-backs · La Liga15th-best full-back in the La Liga328th in the La Liga · potential53rd-highest potential full-back in the La Liga
33.7
Ratingi
53rd of 65 full-backs
39
Seasoni
developing / rotation level
96.2%
Minutes
near ever-present
2.83
Def. actions / 90
moderate defensive volume

Output in context · Celta Vigo finished 6th of 20 · an upper-table side

2.83
Def. / 90
41
Tackles
29
Interceptions
8
Clean sheets

2.83 tackles, blocks & interceptions per 90 — moderate defensive volume, with 8 clean sheets across 32 appearances. Behind an upper-table side (6th of 20) 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. Going forward he chipped in 1 goal and 0 assists — a useful bonus from the back.

Strengths

  • Availability. On the pitch for 96.2% of available minutes — a dependable presence in the XI.
  • Pedigree. Performing in a top-tier setting (team strength 93.5/100).

Watch points

  • Age curve. At 35, both level and resale value are on the downslope.
  • Level. Rates below a nailed-on top-tier starter on our model.

Outlook

With a Rating of 33.7, Alonso carries the 53rd-highest potential of the full-backs in the La Liga of 65. Defensively he reads as moderate defensive volume (2.83 tackles, blocks & interceptions per 90). Veteran phase — a short-term, lower-fee proposition as both level and value decline (0.6× and falling).

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

Transfer news

No transfer news found for this player.