Pau Cubarsi’s commanding 92.5% market-implied probability stems primarily from his standout role as Spain’s best young player at the 2026 World Cup, where the defender started every match in the champions’ run and earned tournament honors. Tuttosport’s latest Top 100 rankings, updated in mid-September, keep the 19-year-old Barcelona centre-back firmly in first place ahead of ineligible teammate Lamine Yamal, reflecting sustained elite form into the new La Liga season. This positions Cubarsi to become the club’s fifth Golden Boy winner after Messi, Pedri, Gavi, and Yamal. Traders see limited room for upset unless a rival like Franco Mastantuono delivers an exceptional campaign or Cubarsi suffers a major dip before the jury’s final vote later this year.