Júnior Alonso

Following his move to Atlanta United FC, Alonso's current-season form is down 63% on last season (Season 38→14), while his Rating eased 27→17. His peak season for form remains 2020/21 (Season 49).

Domestic career

Season	Club	Apps	G	A	Match	RTG	Season
2026/27	Atlanta United FC · 8th	11	0	0	6.95	12	5
2026/27	Atletico-MG · 7th	10	0	0	6.74	19	17
2025/26	Atletico-MG · 11th	31	1	1	7.02	27	38
2024/25	Atletico-MG · 12th	12	1	0	7.1	27	14
2023/24	FC Krasnodar · 2nd	29	0	3	7.13	23	39
2022/23	FC Krasnodar · 6th	12	1	0	7.21	19	18
2022/23	Atletico-MG · 7th	31	0	1	6.93	47	43

Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year. 9 earlier seasons and 1 youth-team spell in the full career.

Paraguay · international

Side	Apps	G
Paraguay	76	3
Paraguay U20	8	2

Career caps & goals — tournament breakdown in the full career.

Scout report

Experienced headCentral defender

J. Alonso is a 33-year-old central defender at Atlanta United FC, rated 16.6 overall by Field Insider's model, ranking 473rd of 491 on scout potential in the Major League Soccer. A seasoned veteran, he has been a regular starter this season (77.4% of available minutes). His defensive output reads 2.68 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 14 — a workmanlike campaign that ranks 122nd of 127 of the 127 centre-backs in the Major League Soccer, on 1 clean sheet and 2.677 defensive actions per 90.

Year-on-year, that's a drop on last season (Season 38 → 14). Over the 7 seasons on record his form has drifted down, peaking in 2020/21.

On long-term talent our Rating reads 17, 121st of 127 of the 127 centre-backs in the Major League Soccer. At 33 Alonso is into the veteran stage, where the age curve weighs on the projection, and a market index of 1.5 reflects that trajectory.

From the career report

Read the full career report →

Past his 2020/21 peak — the recent trend is downward, so buyers are paying for what's left, not what was.

Peak: 2020/21Trending downBreakout: 2025/26

Current potential121st of 127 centre-backs · Major League Soccer · 11 apps Current season122nd of 127 centre-backs · Major League Soccer · 11 apps 122nd-best centre-back in the Major League Soccer 473rd in the Major League Soccer · potential 121st-highest potential centre-back in the Major League Soccer

16.6

Ratingi

121st of 127 centre-backs

13.6

Seasoni

below regular-starter level

77.4%

Minutes

a regular starter

2.68

Def. actions / 90

moderate defensive volume

Output in context · Atlanta United FC finished 8th of 15 · a mid-table side

Apps

2.68

Def. / 90

Tackles

Interceptions

Clean sheets

2.68 tackles, blocks & interceptions per 90 — moderate defensive volume, with 1 clean sheet across 11 appearances.

Strengths

Availability. On the pitch for 77.4% of available minutes — a dependable presence in the XI.

Watch points

Age curve. At 33, 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 16.6, Alonso carries the 121st-highest potential of the centre-backs in the Major League Soccer of 127 — though on just 11 appearances this season, so the standing rests on a small sample. Defensively he reads as moderate defensive volume (2.68 tackles, blocks & interceptions per 90). Veteran phase — a short-term, lower-fee proposition as both level and value decline (0.7× and falling).

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

Per 90 & availability

Minutes played %77.4%

Available fixtures11 of 27

Goals / 900

Assists / 900

Goal contribution / 900

Defensive actions / 902.677

Player flow

Goal involvements0

Pass accuracy %89

Dribble success %66.7

Cards / 900.092

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 (~4), then tapers with age. At 33, Alonso sits on 1.5, past its peak and easing. The blue line is Alonso's projected Rating — 16.6 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 centre-backs in the Major League Soccer with 600+ minutes this season.

Shooting

Goals0

Shots2

Passing

Assists0

Chances created5

Passes747

Pass accuracy89%

Possession

Successful dribbles2

Dribble success66.7%

Duels won28

Duels won %52.8%

Defending

Tackles14

Interceptions9

Blocks6

Fouls committed8

Yellow/red cards

Yellow cards1

Red cards0

Transfer history

€14.6M total transfer fees · 9 moves

Atlanta United FCJul 2026 – nowFree

Atletico-MGJul 2024 – Jul 2026€ 1.1M

FC Krasnodar(back from loan)Jan 2023 – Jul 2024

Atletico-MG(on loan)Mar 2022 – Jan 2023

FC KrasnodarJan 2022 – Mar 2022€ 8M

Atletico-MGJul 2020 – Jan 2022€ 3M

Boca Juniors(on loan)Jan 2019 – Jul 2020

Celta Vigo(on loan)Aug 2018 – Jan 2019

LilleJan 2017 – Aug 2018€ 2.5M

CCerro Portenountil Jan 2017

About J. Alonso

Júnior Osmar Ignacio Alonso Mujica is a 33-year-old centre-back who plays for Atlanta United FC, born on February 9, 1993 in Asunción, standing 185 cm tall. He is from Paraguay. Atlanta United FC currently sit 8th of 15 in the Major League Soccer.

This season

In the current season, J. Alonso has made 11 appearances with 0 goals and 0 assists across 975 minutes, averaging a 6.93 match rating over his last 10 rated games, with 1 yellow card. His season has spanned the Serie A and the CONMEBOL Sudamericana.

When J. Alonso plays, Atlanta United FC's record this season is 9W-6D-8L — and his match ratings average 6.98 at home against 6.83 on the road.

Recent matches

September 20, 2026: 1-0 win away at Portland Timbers (95 minutes, 7.3 rating)
September 12, 2026: 0-0 draw away at DC United (57 minutes, 7.63 rating)
September 9, 2026: 2-3 loss at home vs Orlando City SC (90 minutes, 6.63 rating)
September 5, 2026: 2-2 draw away at Inter Miami (90 minutes, 7.02 rating)
August 29, 2026: 0-2 loss at home vs Charlotte (90 minutes, 6.5 rating)
August 23, 2026: 2-1 win at home vs Sporting Kansas City (90 minutes, 7.2 rating)
August 20, 2026: 2-1 win away at Minnesota United FC (83 minutes, 6.9 rating)
August 15, 2026: 2-1 win at home vs New York Red Bulls (90 minutes, 7 rating)
August 1, 2026: 2-3 loss away at Philadelphia Union (100 minutes, 6.5 rating)
July 25, 2026: 1-4 loss away at New England Revolution (90 minutes, 6.6 rating)

J. Alonso's next match is on October 10, 2026, when Atlanta United FC face FC Cincinnati at home in the Major League Soccer.

Field Insider's view

Field Insider currently rates J. Alonso at 16.6 with a Season form score of 13.6, ranking 473rd of 491 centre-backs in the Major League Soccer. See the full scout report for strengths, watch-points and the market-value outlook.

His honours include 16 career titles — among them the Mineiro 1 and the Copa do Brasil. Full list in the career record.

Career

Across 15 recorded seasons, J. Alonso has totalled 407 club appearances with 18 goals and 10 assists for 8 different clubs. His busiest campaign came in 2015/16, with 43 appearances for Cerro Porteno.

J. Alonso's career has also included time at Atletico-MG, FC Krasnodar, Boca Juniors, Celta Vigo, Lille and CCerro Porteno.

On the international stage, J. Alonso has represented Paraguay and Paraguay U20 — 84 caps and 5 goals in our records.

Transfer news

No transfer news found for this player.

Profile

Season stats

Also this season

Performance data · by competition

Career

Scout report

Output in context · Atlanta United FC finished 8th of 15 · a mid-table side

Strengths

Watch points