Following his move to Standard Liege, Fosso's current-season form is down 41% on last season (Season 22→13), while his Rating eased 61→41. His peak season for form remains 2024/25 (Season 33).

Domestic career

Season	Club	Apps	G	A	Match	RTG	Season
2026/27	Standard Liege · 6th	2	0	0	6.45	41	13
2026/27	Sturm Graz	1	0	0	6.3	—	—
2025/26	Sturm Graz · 1st	14	1	0	6.64	41	13
2025/26	Fortuna Sittard · 11th	17	0	1	6.86	61	22
2024/25	Fortuna Sittard · 11th	30	1	1	6.86	70	33
2023/24	FC Vaduz	30	1	1	6.86	—	—
2022/23	FC Vaduz	30	1	1	6.86	—	—

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

Switzerland · international

Side	Apps	G
Switzerland U21	3	0

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

Scout report

Squad depthBall-winning Central midfielder

R. Fosso is a 24-year-old central midfielder at Fortuna Sittard, rated 60.7 overall by Field Insider's model. An emerging talent, he has been a rotation option this season (49.4% of available minutes). His defensive output reads 4.23 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Fosso.

On the season, Fosso graded 22 for current form (age-blind), on 0 goals, 1 assist and 4.226 defensive actions per 90.

Year-on-year, that's a drop on last season (Season 22 → 13). Over the 3 seasons on record his form has drifted down, peaking in 2024/25.

On long-term talent our Rating reads 61. At 24 Fosso is in his prime years, and a market index of 28 reflects that trajectory.

From the career report

Read the full career report →

Past his 2024/25 peak — the recent trend is downward, so buyers are paying for what's left, not what was.

Peak: 2024/25Trending down

60.7

Ratingi

a strong, regular top-tier starter

21.7

Seasoni

below regular-starter level

49.4%

Minutes

rotation minutes

4.23

Def. actions / 90

solid defensive volume

Output in context · Fortuna Sittard finished 11th of 18 · a mid-table side

Apps

4.23

Def. / 90

Tackles

Interceptions

Clean sheets

4.23 tackles, blocks & interceptions per 90 — solid defensive volume, with 1 clean sheet across 17 appearances. Going forward he chipped in 0 goals and 1 assist — a useful bonus from the back.

Strengths

Defensive volume. 4.23 tackles, blocks & interceptions per 90 — does the unseen work.

Watch points

Game time. Only 49.4% of available minutes — needs a settled run to prove the level.

Outlook

Rated 60.7 overall — a strong, regular top-tier starter. Defensively he reads as solid defensive volume (4.23 tackles, blocks & interceptions per 90). Approaching peak years; value is still building (price multiplier 2×) with the best seasons likely ahead.

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

Per 90 & availability

Minutes played %49.4%

Available fixtures34 of 34

Goals / 900

Assists / 900.06

Goal contribution / 900.06

Defensive actions / 904.226

Player flow

Goal involvements1

Cards / 900.238

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 age 24 (~28), then tapers with age. At 24, Fosso sits on 28, at or near its peak. The blue line is Fosso's projected Rating — 60.7 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 central midfielders in the Jupiler Pro League with 600+ minutes this season.

Shooting

Goals0

Passing

Assists1

Defending

Tackles39

Interceptions26

Blocks6

Yellow/red cards

Yellow cards4

Red cards0

Transfer history

Standard LiegeAug 2026 – now

Sturm GrazJan 2026 – Aug 2026

Fortuna SittardJun 2024 – Jan 2026Free

FFC Vaduzuntil Jun 2024

About R. Fosso

Donfack Ryan Gloire Fosso Ymefack is a 24-year-old central midfielder who plays for Standard Liege, born on June 17, 2002 in Lugano, standing 183 cm tall. He is from Switzerland. Standard Liege currently sit 6th of 18 in the Jupiler Pro League.

This season

In the current season, R. Fosso has made 2 appearances with 0 goals and 0 assists across 39 minutes, averaging a 6.45 match rating over his last 2 rated games, with 1 yellow card. His season has spanned the Bundesliga and the UEFA Champions League.

Recent matches

August 21, 2026: 2-0 win at home vs RAAL La Louvière (11 minutes, 6.6 rating)
August 16, 2026: 3-3 draw away at KV Mechelen (28 minutes, 6.3 rating)

R. Fosso's next match is on August 29, 2026, when Standard Liege face OH Leuven away in the Jupiler Pro League.

Field Insider's view

Field Insider currently rates R. Fosso at 60.7 with a Season form score of 21.7. See the full scout report for strengths, watch-points and the market-value outlook.

His honours include 3 career titles — among them the Cup. Full list in the career record.

Career

Across 6 recorded seasons, R. Fosso has totalled 128 club appearances with 4 goals and 4 assists for 5 different clubs. His busiest campaign came in 2022/23, with 30 appearances for FC Vaduz.

R. Fosso's career has also included time at Sturm Graz, Fortuna Sittard and FFC Vaduz.

On the international stage, R. Fosso has represented Switzerland U21 — 3 caps in our records.

Transfer news

No transfer news found for this player.