In FM06, a "wonderkid" was a rare designation for players under 21 with exceptionally high potential ability (PA).
Long before his Manchester City captaincy, Kompany was a mandatory signing for top clubs, valued for his incredible physical stats and leadership.
Freshly signed from Sevilla, the 19-year-old was the ultimate versatile defender, capable of playing at right-back or center-back at a world-class level.
Already a superstar, Rooney was the "finished product" wonderkid, possessing peak physical and technical stats from day one. Top Wonderkids by Position
At 17, Agüero was arguably the most sought-after striker in the game due to his blistering pace and finishing.
Just 18 when the game was released, Messi was already a world-beater in the database, often becoming the undisputed best player in any long-term save.