PSG coach Laurent Blanc denies Marquinhos is moving to Barcelona.
Barca are in talks with PSG over a fee for the Brazilian defender.
But Blanc insists: " Marquinhos stays, that's certain. We do not want to weaken our squad."
On PSG target Daniel Alves, the Barcelona right-back, Blanc added: "He's one of the best players in the world in his position."
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