OSM Wonderkids 2027 (26/27): Best Young Players
The highest-rated players aged 19 or under in OSM 26/27: wonderkid tables from goalkeeper to striker, the youngest talents, young Turkish players and how they develop.
7 min read
In brief
AI summaryLamine Yamal is the top 2026/27 OSM wonderkid, rated 90 at age 19, followed by Yan Diomande and Pau Cubarsí at 85.
Pau Cubarsí leads young defenders, Ayyoub Bouaddi tops midfielders at 83, and under-19 goalkeepers peak at 74.
Young players develop faster in training, with progress improved by upgraded training facilities and affected by age and rating.
Contents13 sections
The OSM wonderkids list for 26/27 starts with Lamine Yamal: rated 90 at 19. He is followed by Yan Diomande (85), Pau Cubarsí (85), Estêvão (83) and Ayyoub Bouaddi (83). Below are the highest-rated players aged 19 or under, line by line.
The data comes from OSM Helper's player database, pulled on 25 October 2026. The tables show base OSM ratings, without in-form boosts.
How to read "potential" in OSM
OSM Helper's player data has no separate potential value; players are listed by overall, attack and defence rating, age and value. So in this guide a wonderkid means a highly rated player aged 19 or under.
Young players prove their worth through training. According to OSM Helper's 26/27 guide:
- Young players develop faster than older ones; the rate drops as age and rating rise.
- You can train one player per position at a time, so up to four players develop together.
- A training session normally lasts 8 hours.
- Upgrading the stadium's training facility boosts progress by 10%, 25% and 50%.
In practice, an 18-year-old rated 75 will climb faster during the season than a 24-year-old rated 75. Weigh age as heavily as rating when you pick a wonderkid.
OSM wonderkids: best young goalkeepers (19 and under)
| Player | Age | Club (League) | Rating (Att/Def) | Value |
|---|---|---|---|---|
| Florian Hellstern | 18 | SpVgg Greuther Fürth (Germany 2nd Division) | 74 (0/74) | 2.43M |
| Lucca Kiaba Brughmans | 18 | KRC Genk (Belgium) | 73 (0/73) | 2.29M |
| Massimo Pessina | 18 | Bologna (Italy) | 73 (0/73) | 2.29M |
| Nazar Domchak | 19 | Slavia Prague (Czech Republic) | 73 (0/73) | 2.26M |
| Christian Zawieschitzky | 19 | Red Bull Salzburg (Austria) | 72 (0/72) | 2.12M |
Under-19 goalkeepers top out at 74. If you need a keeper who can start straight away, widening the age limit to 21 makes more sense.
Best young defenders
| Player | Position | Age | Club (League) | Rating (Att/Def) | Value |
|---|---|---|---|---|---|
| Pau Cubarsí | Centre-back | 19 | Barcelona (Spain) | 85 (8/85) | 9.70M |
| Luka Vuskovic | Centre-back | 19 | Brighton and Hove Albion (England) | 80 (17/80) | 6.30M |
| Honest Ahanor | Centre-back | 18 | Crystal Palace (England) | 76 (17/76) | 4.58M |
| Xavi Espart | Right-back | 19 | Barcelona (Spain) | 75 (34/75) | 4.74M |
| Noahkai Banks | Centre-back | 19 | FC Augsburg (Germany) | 75 (18/75) | 4.21M |
| Joane Gadou | Centre-back | 19 | Borussia Dortmund (Germany) | 75 (16/75) | 4.15M |
| Karim Coulibaly | Centre-back | 19 | Strasbourg (France) | 75 (11/75) | 3.98M |
| Giovanni Leoni | Centre-back | 19 | Liverpool FC (England) | 75 (7/75) | 3.85M |
Cubarsí and Vuskovic are both above 80. Barcelona right-back Xavi Espart leads the full-backs with 75.
Best young midfielders
| Player | Position | Age | Club (League) | Rating (Att/Def) | Value |
|---|---|---|---|---|---|
| Ayyoub Bouaddi | Defensive mid | 19 | Manchester City (England) | 83 (80/87) | 12.30M |
| Lennart Karl | Attacking mid | 18 | FC Bayern München (Germany) | 80 (82/79) | 9.75M |
| Marc Bernal | Central mid | 19 | Barcelona (Spain) | 77 (78/76) | 6.09M |
| Konstantinos Karetsas | Attacking mid | 18 | Borussia Dortmund (Germany) | 76 (78/74) | 5.74M |
| Rodrigo Mora | Attacking mid | 19 | Roma (Italy) | 76 (78/75) | 6.09M |
| Ethan Nwaneri | Attacking mid | 19 | Borussia Dortmund (Germany) | 76 (78/75) | 6.09M |
| Vasilije Kostov | Attacking mid | 18 | Red Star Belgrade (Serbia) | 75 (77/74) | 5.74M |
| Nathan De Cat | Central mid | 18 | TSG 1899 Hoffenheim (Germany) | 75 (75/75) | 5.31M |
Bouaddi stands out for both his age and position with a defence rating of 87. At 18, Lennart Karl tops the attacking midfielders with 80.
Best young forwards
| Player | Position | Age | Club (League) | Rating (Att/Def) | Value |
|---|---|---|---|---|---|
| Lamine Yamal Nasraoui Ebana | Right wing | 19 | Barcelona (Spain) | 90 (92/26) | 20.58M |
| Yan Diomande | Right wing | 19 | Real Madrid (Spain) | 85 (88/25) | 14.79M |
| Estêvão Willian Almeida de Oliveira Gonçalves | Right wing | 19 | Chelsea (England) | 83 (83/35) | 12.77M |
| Franco Mastantuono | Right wing | 19 | Fiorentina (Italy) | 78 (78/21) | 7.83M |
| Geovany Quenda | Right wing | 19 | Chelsea (England) | 77 (77/20) | 7.27M |
| Max Dowman | Right wing | 16 | Arsenal (England) | 76 (76/20) | 6.96M |
| Ibrahim Mbaye | Right wing | 18 | Aston Villa (England) | 76 (76/24) | 6.85M |
| Rio Ngumoha | Left wing | 18 | Liverpool FC (England) | 76 (76/22) | 6.82M |
Wingers dominate the top of the forward list. If you need a striker, Charalampos Kostoulas leads this age group with 75, followed on 74 by Samuele Inácio, Simone Lontani and Guilherme William Silva Inácio.
The youngest talents (17 and under)
| Player | Position | Age | Club (League) | Rating (Att/Def) | Value |
|---|---|---|---|---|---|
| Max Dowman | Right wing | 16 | Arsenal (England) | 76 (76/20) | 6.96M |
| Kennet Eichhorn | Defensive mid | 17 | Bayer 04 Leverkusen (Germany) | 74 (73/76) | 4.94M |
| Lacine Megnan-Pave | Striker | 16 | Montpellier (France 2nd Division) | 73 (73/10) | 5.15M |
| Mathis Albert | Left wing | 17 | Borussia Dortmund (Germany) | 73 (73/21) | 5.21M |
| Jeremy Monga | Left wing | 17 | Swansea City (England 2nd Division) | 73 (73/20) | 5.20M |
| Antonio Arena | Striker | 17 | Roma (Italy) | 73 (73/13) | 5.13M |
| Samba Konaté | Striker | 17 | RB Leipzig (Germany) | 73 (73/5) | 5.04M |
| Luca Weinhandl | Central mid | 17 | Sturm Graz (Austria) | 73 (72/74) | 4.50M |
Sixteen-year-old Max Dowman leads this group with 76. These players may be too weak for your first eleven today, but this is the age group that develops fastest.
Young Turkish players (21 and under)
| Player | Position | Age | Club (League) | Rating (Att/Def) | Value |
|---|---|---|---|---|---|
| Arda Güler | Attacking mid | 21 | Real Madrid (Spain) | 86 (88/84) | 13.74M |
| Kenan Yildiz | Left wing | 21 | Juventus (Italy) | 84 (84/42) | 13.58M |
| Can Uzun | Attacking mid | 20 | Eintracht Frankfurt (Germany) | 80 (82/79) | 9.53M |
| Yusuf Akçiçek | Centre-back | 20 | Al-Hilal (Saudi Arabia) | 74 (9/74) | 3.53M |
| Mustafa Hekimoğlu | Striker | 19 | Besiktas (Turkey) | 73 (73/19) | 5.08M |
| Isak Vural | Central mid | 20 | Pisa (Italy 2nd Division) | 73 (73/74) | 4.35M |
| Yasin Özcan | Centre-back | 20 | Besiktas (Turkey) | 73 (7/73) | 3.13M |
| Deniz Ofli | Left-back | 19 | Karlsruher SC (Germany 2nd Division) | 72 (34/72) | 3.71M |
Few Turkish players are 19 or under, so we raised the limit to 21. Arda Güler, Kenan Yıldız and Can Uzun are all above 80; Beşiktaş's Mustafa Hekimoğlu is rated 73 at 19.
Before you sign a wonderkid
- The scout skips your own league: According to OSM's official help page, the scout brings players from leagues other than yours.
- Expect competition: The same official page notes that talented players are rare and other managers are hunting them too.
- One season only: In OSM you pick a new team when the season ends, so plan to get your return within that season.
For the previous list, see our OSM 23 wonderkids guide; its ratings do not apply to this season.
Frequently Asked Questions
Who is the best wonderkid in OSM 26/27?
According to OSM Helper's data, the highest rating among players aged 19 or under belongs to Lamine Yamal: 90 (92 with his in-form boost).
Can you see player potential in OSM?
The database we used has no separate potential value. To estimate growth, look at age and current rating; younger players develop faster.
How do young players develop faster?
According to OSM Helper, regular training, an upgraded training facility and friendlies all speed up development.
Where do I find wonderkids?
Sign players outside your league through the scout, and players inside your league through the transfer list or negotiations.
Frequently asked questions
Questions answered in this article
Sources
External links cited in this article
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