Field Insider

Profile

PositionAttacking midfielder
NationalityEngland
Age20
Date of birth20 Aug 2005
Shirt number#24
ClubMiddlesbrough
Attacking midfielderalso played FWD
11
Appearances
1
Goals
0
Assists
323
Minutes

Domestic-league season · Middlesbrough.

Injury-affected season

Missed 5 of Middlesbrough's ~49 games this season through 5 injury absences (inactive, injury). He still appeared 11 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.

Also this season

On loan at HuddersfieldLeague One: 23 apps, 10g 2a, 1378 min

On loan at HuddersfieldLeague Cup: 3 apps, 1g 0a, 124 min

On loan at HuddersfieldEFL Trophy: 1 apps, 1g 1a, 90 min

The headline Season rating covers his time at Middlesbrough; availability counts only fixtures while in this squad.

Performance data · by competition

CompetitionAppsGAMinMatch
League Oneat Huddersfield2310213787.07
Championship11103236.65
League Cupat Huddersfield3101246.97
EFL Trophyat Huddersfield111908.2

Scout report

Squad depthAttacking midfielder

Leo Castledine is a 20-year-old attacking midfielder at Middlesbrough, rated 63.9 overall by Field Insider's model. A young player, he has been a fringe squad member this season (14.4% of available minutes). He brings 0.28 goal contributions per 90 (0.28 goals, 0 assists). Below: strengths, watch-points, market-value outlook and the latest transfer news on Castledine.

On the season, Castledine graded 6 for current form (age-blind), on 1 goal and 0 assists in 11 appearances (0.279 involvements per 90).

Year-on-year, that's a drop on last season (Season 13 → 6).

On long-term talent our Rating reads 64. At 20 Castledine is still climbing toward his ceiling, and a market index of 25 reflects that trajectory.

Read the appearance count in context: Castledine missed 5 games through injury (inactive, injury) out of roughly 49 this season. The 11 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 →

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

Peak: 2025/26Trending upInjury-hit 2025/26
63.9
Ratingi
a strong, regular top-tier starter
6.1
Seasoni
below regular-starter level
14.4%
Minutes
limited game time
0.28
Goal contrib / 90
modest end product

Output in context · Middlesbrough finished 5th of 24 · an upper-table side

1
Goals
0
Assists
1
G+A
0.09
Goals / app

1 goal in 11 appearances (0.09 per game) — light end product the role wants to see climb.

Strengths

  • Ceiling. High potential at just 20 — room to grow into a bigger role.

Watch points

  • Game time. Only 14.4% of available minutes — needs a settled run to prove the level.
  • Output. 0.28 contributions per 90 is light for an attacking role — end product needs to climb.

Outlook

Rated 63.9 overall — a strong, regular top-tier starter. In the final third he profiles as a work-in-progress on end product (0.28 goal contributions per 90). At 20 the trajectory points up — potential sits near its ceiling (98/100) and market value should climb as minutes and output follow. With this floor already at 20, the ceiling gets tested by a step up in level — one to track.

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

Transfer news

No transfer news found for this player.