Field Insider

Thomas Deng

Squad depthYokohama F. Marinos · 29 yrsStarter

based on the 2025 season · updated 18 Aug 2026

Profile

Full nameThomas Jok Deng
PositionCentre-back
NationalityAustralia
Age29
Date of birth20 Mar 1997
BirthplaceNairobi
Height181 cm
Shirt number#44
ClubYokohama F. Marinos
Centre-back
21
Appearances
0
Goals
0
Assists
1803
Minutes

Domestic-league season · Yokohama F. Marinos.

Scout report

Squad depthCentral defender

T. Deng is a 29-year-old central defender at Yokohama F. Marinos, rated 30.9 overall by Field Insider's model, ranking 54th of 98 on scout potential in the J1 League. An experienced operator, he has been a rotation option this season (52.7% of available minutes). His defensive output reads 3.94 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Deng.

Judged on this season alone, Deng graded 26 — a solid campaign that ranks top 40% of the 20 centre-backs in the J1 League, on 6 clean sheets and 3.943 defensive actions per 90.

Year-on-year, that's a clear step up on last season (Season 21 → 26). Over the 5 seasons on record his form has held fairly steady, peaking in 2023/24.

On long-term talent our Rating reads 31, 9th of 20 of the 20 centre-backs in the J1 League. At 29 Deng is in his prime years, and a market index of 6.6 reflects that trajectory.

From the career report
Read the full career report →

Deng is operating at his career peak — the 2023/24 level is the level.

Peak: 2023/24Holding levelRemarkably consistent
30.9
Ratingi
9th of 20 centre-backs
26.4
Seasoni
below regular-starter level
52.7%
Minutes
rotation minutes
3.94
Def. actions / 90
solid defensive volume

Output in context · Yokohama F. Marinos finished 15th of 20 · a lower-table side

21
Apps
3.94
Def. / 90
37
Tackles
22
Interceptions
6
Clean sheets

3.94 tackles, blocks & interceptions per 90 — solid defensive volume, with 6 clean sheets across 21 appearances. Doing that for a lower-table side (15th of 20) is harder than the bare numbers suggest: a back line under more pressure has to defend more often and protects fewer leads, so the volume — and any clean sheets — carry real weight.

Strengths

  • Defensive volume. 3.94 tackles, blocks & interceptions per 90 — does the unseen work.

Watch points

  • Game time. Only 52.7% 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 30.9, Deng carries the 9th-highest potential of the centre-backs in the J1 League of 20, and he is posting that for a lower-table side (Yokohama F. Marinos finished 15th of 20) — individual numbers are harder to earn on a struggling team, so his underlying level likely sits a touch above the ranking. Defensively he reads as solid defensive volume (3.94 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 J1 League with 600+ minutes this season.

Shooting

Goals0

Passing

Assists0

Defending

Tackles37
Interceptions22
Blocks20

Yellow/red cards

Yellow cards3
Red cards0

Transfer news

No transfer news found for this player.