RIO DE JANEIRO, Aug. 26 (Xinhua) -- Barcelona have confirmed the signing of Brazilian defender Douglas for four million euros.
In a statement, the Catalan club said a performance-base clause could add a further 1.5 million euros to the transfer fee.
Sao Paulo hold 60% of the player's economic rights with the balance held by sports marketing firm Traffic.
"Douglas will travel to Barcelona this weekend for a medical exam... [and] sign a five-year contract," the Barcelona statement said.
The announcement comes after Sao Paulo last week confirmed the parties had reached an in-principle agreement.
Douglas had been expected to be loaned back to the Brazilian club for a year before officially joining Barcelona's squad next June.
But it is understood the Blaugrana have changed their plans. The 24-year-old right back is now expected to either remain in Luis Enrique's squad or be loaned to a weaker European rival this season.