Barcelona paid Racing Santandar €5m for Pablo Torre, according to Diario Sport.
However, there are variables in Torre's contract that could see the total fee rise to €20m.
For example, Barca will pay Racing €1m for every game the teenager plays for the first team in his first 10 senior appearances - he has to achieve in the next 140 games.
Torre's contract will last for the next 4-years and comes with a buyout clause of €100m.
Torre has already said his goodbye to Racing and will probably join Barca for preseason.
Source: Tribalfootball
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