In the World youth arc, Uruguay was one of Japan's opponents in the group stage of the World Youth (World youth arc, chapter 54, page 11).

Victory 5-1 against Mexico in a friendly match (World youth arc, chapter 54, page 8)
Group A of the World youth with Japan, Mexico and Italy (World youth arc, chapter 48, pages 8-9)
Victory 3-2 against Italy in the group stage (Kashima Stadium) (World youth arc, chapter 53, pages 48-49)
Defeat 5-6 against Japan in the group stage (Kashima Stadium) (World youth arc, chapter 55, pages 82-83)
Victory 2-0 against Mexico in the group stage (Urawa Komaba Stadium) (World youth arc, chapter 55, pages 96-97)
Defeat 0-6 against Brazil in the quarter finals (Nihondaira) (World youth arc, chapter 61, pages 12-13)

Players

火野 竜馬
Hino Ryoma
FW (n°9)

ラモン ビクトリーノ
Ramon Victorino
FW (n°11, captain)

エンリコ
Enrico
MF (n°10)

フェンガス
Fengas
MF (n°8)

ディオニージ
Dionisi
MF (n°7)

ペドロ
Pedro
MF (n°6)

フィリッポ
Filippo
DF (n°5)

アメリゴ
Amerigo
DF (n°4)

オリバレス
Olivares
DF (n°3)

パスー
Pazu
DF (n°2)

コンザレス
Conzales
GK (n°1)

マチルダ 尽之助
Matilda Jinnosuke
Head coach

Abilities
According to newspapers, they are considered a dark horse (World youth arc, chapter 50, pages 16-17). According to the coach Matilda, the players can't lose to anyone in speed and power (World youth arc, chapter 54, pages 36-37), and they have the most prominent pair of forwards (World youth arc, chapter 54, pages 72-73). It's the kind of team that can score 11 goals if they take 10 (World youth arc, chapter 54, page 88).

Training
Except for Victorino, all the players from the old Uruguay youth were changed, and they were trained extremely hard around Hino by their coach Matilda Jinnosuke, in a short period of time, until around right before the World youth (World youth arc, chapter 53, page 53).

Combi play
Hino and Victorino can perform a combi play that is similar to the golden combi (World youth arc, chapter 54, pages 64 to 69). The opposing team can react to this attack by reinforcing their central defense, with both sidebacks coming to the center, but it's then leaving them open for a side attack from Pazu (World youth arc, chapter 54, pages 68 to 71).